Lithium Carbonate

6 ADVERSE REACTIONS The following adverse reactions are described in greater detail in other sections: • Acute Lithium Toxicity [see Warnings and Precautions ( 5.1 )] • Lithium-Induced Polyuria [see Warnings and Precautions ( 5.2 )] • Hyponatremia [see Warnings and Precautions ( 5.3 )] • Lithium-Induced Chronic Kidney Disease [see Warnings and Precautions ( 5.4 )] • Encephalopathic Syndrome [see Warnings and Precautions ( 5.5 )] • Serotonin Syndrome [see Warnings and Precautions ( 5.6 )] • Hypothyroidism or Hyperthyroidism [see Warnings and Precautions ( 5.7 )] • Hypercalcemia and Hyperparathyroidism [see Warnings and Precautions ( 5.8 )] • Unmasking of Brugada Syndrome [see Warnings and Precautions ( 5.9 )] • Pseudotumor Cerebri [see Warnings and Precautions ( 5.10 )] Common Adverse Reactions: • Adult Patients: fine hand tremor, polyuria, mild thirst, nausea, general discomfort during initial treatment ( 6 ) • Pediatric Patients (7-17 years): nausea/vomiting, polyuria, thyroid abnormalities, tremor, thirst/polydipsia, dizziness, rash/dermatitis, ataxia/gait disturbance, decreased appetite, and blurry vision ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact Hikma Pharmaceuticals USA Inc. at 1-800-962-8364 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice. Pediatric Patients (7 to 17 years): Bipolar I Disorder: The following findings are based on an 8-week, placebo-controlled study for acute manic or mixed episodes of bipolar I disorder in pediatric patients 7 to 17 years (N= 81). In this study, lithium was administered at daily doses ranging from 300 to 3600 (mean dose 1483 mg ± 584) with serum levels ranging from 0 to 2.0 (mean level 0.98 mEq/L ± 0.47). Common Adverse Reactions (incidence ≥ 5% and at least twice the rate of placebo): nausea/vomiting, polyuria, thyroid abnormalities, tremor, thirst/polydipsia, dizziness, rash/dermatitis, ataxia/gait disturbance, decreased appetite, and blurry vision. Adverse Reactions Occurring at an Incidence of 2% or More in Lithium-Treated Pediatric Patients: Adverse reactions associated with the use of lithium (incidence of 2% or greater, rounded to the nearest percent, and lithium incidence greater than placebo) that occurred during acute therapy (up to 8-weeks in pediatric patients with bipolar disorder) are shown in Table 3. Table 3: Adverse Reactions Reported in 2% or More of Pediatric Patients on Lithium and That Occurred at Greater Incidence Than in the Placebo Group in the 8-Week Acute Bipolar Trial System Organ Class/ Preferred Term Placebo N=28 % Lithium N=53 % Gastrointestinal Disorders Nausea/vomiting 29 57 General Disorders Fatigue 4 26 Genitourinary Disorders Polyuria (Including Enuresis) 14 38 Investigations Increased TSH 0 25 Metabolism and nutrition disorders Thirst/polydipsia 11 28 Decreased appetite 4 9 Nervous system disorders Ataxia/gait disturbance 0 13 Blurry vision 0 9 Disorientation 0 6 Dizziness 7 23 Tremor 7 32 Skin and subcutaneous tissue disorders Rash/dermatitis 0 13 Adult Patients: The following adverse reactions have been identified following use of lithium. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Central Nervous System: tremor, muscle hyperirritability (fasciculations, twitching, clonic movements of whole limbs), hypertonicity, ataxia, choreoathetotic movements, hyperactive deep tendon reflexes, extrapyramidal symptoms including acute dystonia, cogwheel rigidity, blackout spells, epileptiform seizures, slurred speech, dizziness, vertigo, downbeat nystagmus, incontinence of urine or feces, somnolence, psychomotor retardation, restlessness, confusion, stupor, coma, tongue movements, tics, tinnitus, hallucinations, poor memory, slowed intellectual functioning, startled response, worsening of organic brain syndromes, myasthenic syndromes (rarely). EEG Changes: diffuse slowing, widening of frequency spectrum, potentiation and disorganization of background rhythm. Cardiovascular: conduction disturbance (mostly sinus node dysfunction with possibly severe sinus bradycardia and sinoatrial block), ventricular tachyarrhythmia, peripheral vasculopathy (resembling Raynaud’s Syndrome). ECG Changes: reversible flattening, isoelectricity or rarely inversion of T-waves, prolongation of the QTc interval. Gastrointestinal : anorexia, nausea, vomiting, diarrhea, gastritis, salivary gland swelling, abdominal pain, excessive salivation, flatulence, indigestion. Genitourinary: glycosuria, decreased creatinine clearance, albuminuria, oliguria, and symptoms of nephrogenic diabetes insipidus including polyuria, thirst, and polydipsia. Dermatologic: drying and thinning of hair, alopecia, anesthesia of skin, chronic folliculitis, xerosis cutis, psoriasis onset or exacerbation, generalized pruritus with or without rash, cutaneous ulcers, angioedema, drug reaction with eosinophilia and systemic symptoms (DRESS). Autonomic Nervous System: blurred vision, dry mouth, impotence/sexual dysfunction. Miscellaneous: fatigue, lethargy, transient scotoma, exopthalmos, dehydration, weight loss, leukocytosis, headache, transient hyperglycemia, hypermagnesemia, excessive weight gain, edematous swelling of ankles or wrists, dysgeusia/taste distortion (e.g., metallic or salty taste), thirst, swollen lips, tightness in chest, swollen and/or painful joints, fever, polyarthralgia, and dental caries.

4 CONTRAINDICATIONS Lithium is contraindicated in patients with known hypersensitivity to any inactive ingredient in the lithium carbonate tablet or capsule or lithium citrate products [see Adverse Reactions ( 6 )]. Known hypersensitivity to any inactive ingredient in the drug product. ( 4 )

11 DESCRIPTION Each tablet for oral administration contains lithium carbonate USP, 300 mg and the following inactive ingredients: calcium stearate, microcrystalline cellulose, povidone, purified water, sodium lauryl sulfate, and sodium starch glycolate. Each capsule for oral administration contains lithium carbonate USP, 150 mg, 300 mg or 600 mg and the following inactive ingredient: talc. The capsule shells contain black monogramming ink, FD&C Red No. 40 (300 mg and 600 mg only), gelatin and titanium dioxide. The black monogramming ink contains ammonium hydroxide, ethanol, iron oxide black, isopropyl alcohol, N-butyl alcohol, propylene glycol and shellac glaze. Each 5 mL of solution for oral administration contains lithium ion (Li + ), 8 mEq (equivalent to amount of lithium in 300 mg of lithium carbonate), alcohol 0.3% v/v and the following other inactive ingredients: citric acid, purified water, raspberry blend, sodium benzoate and sorbitol solution. Lithium Oral Solution is a palatable oral dosage form of lithium ion. It is prepared in solution from lithium hydroxide and citric acid in a ratio approximately di-lithium citrate. Lithium is an element of the alkali-metal group with atomic number 3, atomic weight 6.94, and an emission line at 671 nm on the flame photometer. The empirical formula for Lithium Citrate is C 6 H 5 Li 3 O 7 ; molecular weight 209.93. Lithium acts as an antimanic. Lithium Carbonate, USP is a granular, white powder with molecular formula Li 2 CO 3 and molecular weight 73.89.

2 DOSAGE AND ADMINISTRATION • Recommended starting dosage for adults and pediatric patients over 30 kg ( 2.2 ): • Tablets or Capsules: 300 mg, three times daily, or • Oral Solution: 8mEq lithium (5 mL) three times daily • Recommended starting dosage for pediatric patients 20 to 30 kg ( 2.2 ): • Tablets or Capsules: 300 mg twice daily, or • Oral Solution: 8mEq (5mL), twice daily • Obtain serum lithium concentration assay after 3 days, drawn 12 hours after the last oral dose and regularly until patient is stabilized. • Acute Manic or Mixed Episodes (patients 7 years and older): Titrate to serum lithium concentrations 0.8 to 1.2 mEq/L ( 2.2 ). • Maintenance Treatment for Bipolar I Disorder (patients 7 years and older): Titrate to serum lithium concentrations 0.8 to 1 mEq/L ( 2.2 ). • Pre-treatment Screening: Evaluate renal function, vital signs, electrolytes, thyroid function, concurrent medications, and pregnancy status ( 2.1 ). • Mild to Moderate Renal Impairment (CLer 30 to 89 mL/min): Start with dosages less than those for patients with normal renal function, titrate slowly with frequent monitoring ( 2.5 ). • Severe Renal Impairment (CLer<30mL/min): Avoid use of lithium ( 2.5 ). 2.1 Pre-treatment Screening Before initiating treatment with lithium, renal function, vital signs, serum electrolytes, and thyroid function should be evaluated. Concurrent medications should be assessed, and if the patient is a woman of childbearing potential, pregnancy status and potential should be considered. 2.2 Recommended Dosage See Table 1 for dosage recommendations for acute and maintenance treatment of bipolar I disorder in adult and pediatric patients (7 to 17 years). Obtain serum lithium concentration assay after 3 days, drawn 12 hours after the last oral dose and regularly until patient is stabilized. Fine hand tremor, polyuria, and thirst may occur during initial therapy for the acute manic phase and may persist throughout treatment. Nausea and general discomfort may also appear during the first few days of lithium administration. These adverse reactions may subside with continued treatment, concomitant administration with food, or temporary reduction or cessation of dosage. Table 1. Lithium Dosing for Bipolar I Disorder Patient Group Formulation Starting Dose Dose Titration Acute Goal Maintenance Goal Serum Level Usual Dose Serum Level Usual Dose Adult and Pediatric Patients over 30 kg Tablets or capsules 300 mg three times daily 300 mg every 3 days 0.8 to 1.2 mEq/L 600 mg two to three times daily 0.8 to 1.0 mEq/L 300 to 600 mg two to three times daily Liquid 8 mEq (5 mL) three times daily 8 mEq (5 mL) every 3 days 16 mEq (10mL) two to three times daily 8 to 16 mEq (5 to 10 mL) two to three times daily Pediatric Patients 20 to 30 kg Tablets or capsules 300 mg twice daily 300 mg weekly 600 to 1500 mg in divided doses daily 600 to 1200 mg in divided doses daily Liquid 8 mEq (5 mL) twice daily 8 mEq (5 mL) weekly 16 to 40 mEq (10 to 25 mL) in divided doses daily 16 to 32 mEq (10 to 20 mL) in divided doses daily Each 5 mL of Lithium Oral Solution contains 8 mEq of lithium ion (Li + ) which is equivalent to the amount of lithium in 300 mg of lithium carbonate. See Table 2 for lithium carbonate and lithium oral solution dose conversion. Table 2. Lithium Carbonate and Lithium Oral Solution Dose Conversion Lithium Carbonate Tablets or Capsules Lithium Oral Solution 150 mg 4 mEq (2.5 mL) 300 mg 8 mEq (5 mL) 600 mg 16 mEq (10 mL) 2.3 Serum Lithium Monitoring Blood samples for serum lithium determination should be drawn immediately prior to the next dose when lithium concentrations are relatively stable (i.e., 12 hours after the previous dose). Total reliance must not be placed on serum concentrations alone. Accurate patient evaluation requires both clinical and laboratory analysis. In addition to regular monitoring of serum lithium concentrations for patients on maintenance treatment, serum lithium concentrations should be monitored after any change in dosage, concurrent medication (e.g., diuretics, non-steroidal anti-inflammatory drugs, renin-angiotensin system antagonists, or metronidazole), marked increase or decrease in routinely performed strenuous physical activity (such as an exercise program) and in the event of a concomitant disease [see Boxed Warning , Warnings and Precautions ( 5.1 ), Drug Interactions ( 7.1 )] . Patients abnormally sensitive to lithium may exhibit toxic signs at serum concentrations that are within what is considered the therapeutic range. Geriatric patients often respond to reduced dosage, and may exhibit signs of toxicity at serum concentrations ordinarily tolerated by other patients [see Specific Populations ( 8.5 )] . 2.4 Dosage Adjustments during Pregnancy and the Postpartum Period If the decision is made to continue lithium treatment during pregnancy, monitor serum lithium concentrations and adjust the dosage as needed in a pregnant woman because renal lithium clearance increases during pregnancy. Avoid sodium restriction or diuretic administration. To decrease the risk of postpartum lithium intoxication, decrease or discontinue lithium therapy two to three days before the expected delivery date to reduce neonatal concentrations and reduce the risk of maternal lithium intoxication due to the change in vascular volume which occurs during delivery. At delivery, vascular volume rapidly decreases and the renal clearance of lithium may decrease to pre-pregnancy concentrations. Restart treatment at the preconception dose when the patient is medically stable after delivery with careful monitoring of serum lithium concentrations [see Warnings and Precautions ( 5.1 ) and Use in Specific Populations ( 8.1 )] . 2.5 Dosage Adjustments for Patients with Renal Impairment Start patients with mild to moderately impaired renal function (creatinine clearance 30 to 89 mL/min evaluated by Cockcroft-Gault) with dosages less than those for patients with normal renal function [see Dosage and Administration ( 2.2 )] . Titrate slowly while frequently monitoring serum lithium concentrations and monitoring for signs of lithium toxicity. Lithium is not recommended for use in patients with severe renal impairment (creatinine clearance less than 30 mL/min evaluated by Cockcroft-Gault) [see Use in Specific Populations ( 8.6 )] .

1 INDICATIONS AND USAGE Lithium is a mood-stabilizing agent indicated as monotherapy for the treatment of bipolar I disorder: • Treatment of acute manic and mixed episodes in patients 7 years and older [see Clinical Studies ( 14 )] • Maintenance treatment in patients 7 years and older [see Clinical Studies ( 14 )] Lithium is a mood-stabilizing agent indicated as monotherapy for the treatment of bipolar I disorder: • Treatment of acute manic and mixed episodes in patients 7 years and older ( 1 ) • Maintenance treatment in patients 7 years and older ( 1 )

10 OVERDOSAGE The toxic concentrations for lithium (≥ 1.5 mEq/L) are close to the therapeutic concentrations [see Warnings and Precautions ( 5.1 )] . At lithium concentrations greater than 3 mEq/L, patients may progress to seizures, coma, and irreversible brain damage. Treatment: For current information on the management of poisoning or overdosage, contact the National Poison Control Center at 1-800-222-1222 or www.poison.org . No specific antidote for lithium poisoning is known. Mild symptoms of lithium toxicity can usually be treated by reduction in dose or cessation of the drug. In severe cases of lithium poisoning, the goal of treatment is elimination of this ion from the patient. Administration of gastric lavage should be performed, but use of activated charcoal is not recommended as it does not significantly absorb lithium ions. Hemodialysis is the treatment of choice as it is an effective and rapid means of removing lithium in patients with severe toxicity. As an alternative option, urea, mannitol and aminophylline can induce a significant increase in lithium excretion. Appropriate supportive care for the patient should be undertaken. Patients with impaired consciousness should have their airway protected and it is critical to correct any volume depletion or electrolyte imbalance. Patients should be monitored to prevent hypernatremia while receiving normal saline and careful regulation of kidney function is of utmost importance. Serum lithium concentrations should be closely monitored as there may be a rebound in serum lithium concentrations as a result of delayed diffusion from the body tissues. Likewise, during the late recovery phase, lithium should be re-administered with caution taking into account the possible release of significant lithium stores in body tissues.

7 DRUG INTERACTIONS • Diuretics, NSAID, renin-angiotensin system antagonists, or metronidazole may increase lithium serum concentrations. Recommend frequent monitoring of serum lithium concentration and adjust dosage when necessary. ( 2.3 , 7.1 ) • Serotonergic Agents: Increased risk of serotonin syndrome when co-administered with lithium. ( 5.6 , 7.1 ) • Antipsychotics: There have been reports of neurologic adverse reactions in patients treated with lithium and an antipsychotic, ranging from extrapyramidal symptoms to neuroleptic malignant syndrome. ( 5.5 , 7.1 ) 7.1 Drugs Having Clinically Important Interactions with Lithium Table 4: Clinically Important Drug Interactions with Lithium Diuretics Clinical Impact: Diuretic-induced sodium loss may reduce lithium clearance and increase serum lithium concentrations . Intervention: More frequent monitoring of serum electrolyte and lithium concentrations. Reduce lithium dosage based on serum lithium concentration and clinical response [see Dosage and Administration ( 2.3 ), Warning and Precautions ( 5.3 )]. Non-Steroidal Anti-inflammatory Drugs (NSAID) Clinical Impact: NSAID decrease renal blood flow, resulting in decreased renal clearance and increased serum lithium concentrations. Intervention: More frequent serum lithium concentration monitoring. Reduce lithium dosage based on serum lithium concentration and clinical response [see Dosage and Administration ( 2.3 )] . Renin-Angiotensin System Antagonists Clinical Impact: Concomitant use increase steady-state serum lithium concentrations. Intervention: More frequent monitoring of serum lithium concentration. Reduce lithium dosage based on serum lithium concentration and clinical response [see Dosage and Administration ( 2.3 )] . Serotonergic Drugs Clinical Impact: Concomitant use can precipitate serotonin syndrome. Intervention: Monitor patients for signs and symptoms of serotonin syndrome, particularly during lithium initiation. If serotonin syndrome occurs, consider discontinuation of lithium and/or concomitant serotonergic drugs [see Warnings and Precautions ( 5.6 )] . Nitroimidazole Antibiotics Clinical Impact: Concomitant use may increase serum lithium concentrations due to reduced renal clearance. Intervention: More frequent monitoring of serum lithium concentration. Reduce lithium dosage based on serum lithium concentration and clinical response [see Dosage and Administration ( 2.3 )] . Acetazolamide, Urea, Xanthine Preparations, Alkalinizing Agents Clinical Impact: Concomitant use can lower serum lithium concentrations by increasing urinary lithium excretion. Intervention: More frequent serum lithium concentration monitoring. Increase lithium dosage based on serum lithium concentration and clinical response [see Dosage and Administration ( 2.3 )] . Methyldopa, Phenytoin and Carbamazepine Clinical Impact: Concomitant use may increase risk of adverse reactions of these drugs. Intervention: Monitor patients closely for adverse reactions of methyldopa, phenytoin, and carbamazepine. Iodide Preparations Clinical Impact: Concomitant use may produce hypothyroidism. Intervention: Monitor patients for signs or symptoms of hypothyroidism [see Warnings and Precautions ( 5.7 )] . Calcium Channel Blocking Agents (CCB) Clinical Impact: Concomitant use may increase the risk of neurologic adverse reactions in the form of ataxia, tremors, nausea, vomiting, diarrhea and/or tinnitus. Intervention: Monitor for neurologic adverse reactions. Atypical and Typical Antipsychotic Drugs Clinical Impact: Reports of neurotoxic reactions in patients treated with both lithium and an antipsychotic, ranging from extrapyramidal symptoms to neuroleptic malignant syndrome, as well as reports of an encephalopathic syndrome in few patients treated with concomitant therapy [see Warnings and Precautions ( 5.5 )] . Intervention: Monitor for neurologic adverse reactions. Sodium-Glucose Cotransporter 2 (SGLT2) inhibitor Clinical Impact: Concomitant use of lithium with an SGLT2 inhibitor may decrease serum lithium concentrations. Intervention: Monitor serum lithium concentration more frequently during SGLT2 inhibitor initiation and dosage changes. Neuromuscular Blocking Agents Clinical Impact: Lithium may prolong the effects of neuromuscular blocking agents. Intervention: Monitor for prolonged paralysis.

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action The mechanism of action of lithium as a mood stabilizing agent is unknown. 12.3 Pharmacokinetics Absorption: After oral administration, lithium is reported to be completely absorbed in the upper gastrointestinal tract. Peak serum concentrations (T max ) occur 0.25 to 3 hours after oral administration of immediate release preparations and 2 to 6 hours after sustained-release preparations. Distribution: The distribution space of lithium approximates that of total body water, and the plasma protein binding is negligible. After equilibrium, the apparent volume of distribution is 0.7 to 1 L/kg. Metabolism: Lithium is not metabolized. Excretion: Lithium is primarily excreted in urine, proportionally to its serum concentration. Lithium is filtered by the glomerulus, and 80% is reabsorbed by passive diffusion in the proximal tubule. The elimination half-life of lithium is approximately 18 to 36 hours. Lithium excretion in feces is insignificant. Specific Populations: Pediatric Use: A pharmacokinetic study of lithium was performed in 39 subjects with bipolar I disorder. Both apparent clearance and apparent volume of distribution increase as body weight increases. A lower dose in patients < 30 kg is necessary to achieve lithium exposures in pediatric patients similar to those observed in adults treated at recommended doses of lithium [see Dosage and Administration ( 2.2 )] . The estimated plasma clearance was 0.59 L/h, 0.79 L/h and 1.17 L/h for pediatric patients weighing 20 kg, 30 kg and 50 kg, respectively.

12.1 Mechanism of Action The mechanism of action of lithium as a mood stabilizing agent is unknown.

12.3 Pharmacokinetics Absorption: After oral administration, lithium is reported to be completely absorbed in the upper gastrointestinal tract. Peak serum concentrations (T max ) occur 0.25 to 3 hours after oral administration of immediate release preparations and 2 to 6 hours after sustained-release preparations. Distribution: The distribution space of lithium approximates that of total body water, and the plasma protein binding is negligible. After equilibrium, the apparent volume of distribution is 0.7 to 1 L/kg. Metabolism: Lithium is not metabolized. Excretion: Lithium is primarily excreted in urine, proportionally to its serum concentration. Lithium is filtered by the glomerulus, and 80% is reabsorbed by passive diffusion in the proximal tubule. The elimination half-life of lithium is approximately 18 to 36 hours. Lithium excretion in feces is insignificant. Specific Populations: Pediatric Use: A pharmacokinetic study of lithium was performed in 39 subjects with bipolar I disorder. Both apparent clearance and apparent volume of distribution increase as body weight increases. A lower dose in patients < 30 kg is necessary to achieve lithium exposures in pediatric patients similar to those observed in adults treated at recommended doses of lithium [see Dosage and Administration ( 2.2 )] . The estimated plasma clearance was 0.59 L/h, 0.79 L/h and 1.17 L/h for pediatric patients weighing 20 kg, 30 kg and 50 kg, respectively.

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3 DOSAGE FORMS AND STRENGTHS Each 5 mL of clear, colorless to slightly amber or red lithium oral solution, USP contains 8 mEq lithium ion (Li + ) (equivalent to the amount of lithium in 300 mg of lithium carbonate). Each 300 mg tablet for oral administration contains: lithium carbonate, USP and is a white to off-white, biconvex tablet, scored on one side with product identification "54 452" debossed on the other side. Each 150 mg capsule for oral administration contains: lithium carbonate, USP and is an opaque, white capsule, imprinted with product identification “54 213” on both the cap and the body and containing a white powder. Each 300 mg capsule for oral administration contains: lithium carbonate, USP and is an opaque, light pink-colored capsule, imprinted with product identification “54 463” on both the cap and the body and containing a white powder. Each 600 mg capsule for oral administration contains: lithium carbonate, USP and is an opaque, light pink-colored cap with white body, imprinted with product identification “54 702” on both the cap and the body and containing a white powder. • Oral Solution: 8 mEq of lithium (Li + ) per 5mL ( 3 ) • Tablets: 300 mg of lithium carbonate ( 3 ) • Capsules: 150 mg, 300 mg, 600 mg of lithium carbonate ( 3 )

Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION CALCIUM STEARATE MICROCRYSTALLINE CELLULOSE POVIDONE K30 SODIUM LAURYL SULFATE SODIUM STARCH GLYCOLATE TYPE A POTATO WATER 54;452 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION CALCIUM STEARATE MICROCRYSTALLINE CELLULOSE POVIDONE K30 SODIUM LAURYL SULFATE SODIUM STARCH GLYCOLATE TYPE A POTATO WATER 54;452 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION GELATIN, UNSPECIFIED TALC TITANIUM DIOXIDE FERROSOFERRIC OXIDE POVIDONE K30 AMMONIA ALCOHOL ISOPROPYL ALCOHOL BUTYL ALCOHOL PROPYLENE GLYCOL SHELLAC 54;213 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION TALC GELATIN, UNSPECIFIED TITANIUM DIOXIDE AMMONIA ALCOHOL FERROSOFERRIC OXIDE ISOPROPYL ALCOHOL BUTYL ALCOHOL PROPYLENE GLYCOL SHELLAC opaque 54;213 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION TALC FD&C RED NO. 40 GELATIN, UNSPECIFIED TITANIUM DIOXIDE FERROSOFERRIC OXIDE AMMONIA ALCOHOL ISOPROPYL ALCOHOL BUTYL ALCOHOL PROPYLENE GLYCOL SHELLAC opaque, light-pink 54;463 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION TALC FD&C RED NO. 40 GELATIN, UNSPECIFIED TITANIUM DIOXIDE AMMONIA ALCOHOL FERROSOFERRIC OXIDE ISOPROPYL ALCOHOL BUTYL ALCOHOL PROPYLENE GLYCOL SHELLAC opaque, light-pink 54;463 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION TALC FD&C RED NO. 40 GELATIN, UNSPECIFIED TITANIUM DIOXIDE AMMONIA ALCOHOL FERROSOFERRIC OXIDE ISOPROPYL ALCOHOL BUTYL ALCOHOL SHELLAC PROPYLENE GLYCOL Opaque, Light Pink Colored Capsule/ White Body 54;702 Lithium Carbonate Lithium Carbonate LITHIUM CARBONATE LITHIUM CATION TALC FD&C RED NO. 40 GELATIN, UNSPECIFIED TITANIUM DIOXIDE FERROSOFERRIC OXIDE SHELLAC AMMONIA ALCOHOL ISOPROPYL ALCOHOL BUTYL ALCOHOL PROPYLENE GLYCOL Opaque, Light Pink Colored Capsule/White Body 54;702 Lithium Lithium LITHIUM CITRATE LITHIUM CATION ALCOHOL ANHYDROUS CITRIC ACID RASPBERRY SODIUM BENZOATE SORBITOL WATER

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis: There have been no long-term studies performed in animals to evaluate the carcinogenic potential of lithium. Mutagenesis: There have been no adequate studies conducted to evaluate the mutagenic and genotoxic potential of lithium. Impairment of Fertility: There have been no adequate studies performed in animals at current standards to evaluate the effect of lithium treatment on fertility. However, published studies in male mice and rats administered repeated daily dosing of lithium carbonate report adverse effects on male reproductive organs, decreased spermatogenesis and decreased testosterone levels.

13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenesis: There have been no long-term studies performed in animals to evaluate the carcinogenic potential of lithium. Mutagenesis: There have been no adequate studies conducted to evaluate the mutagenic and genotoxic potential of lithium. Impairment of Fertility: There have been no adequate studies performed in animals at current standards to evaluate the effect of lithium treatment on fertility. However, published studies in male mice and rats administered repeated daily dosing of lithium carbonate report adverse effects on male reproductive organs, decreased spermatogenesis and decreased testosterone levels.

NDA018558

Lithium Carbonate

Lithium Carbonate

0054-8528

HUMAN PRESCRIPTION DRUG

ORAL

PACKAGE/LABEL PRINCIPAL DISPLAY PANEL Lithium Oral Solution USP, 8mEq per 5mL NDC 0054-3527-63 Oral Solution, 500 mL Bottle Label

17 PATIENT COUNSELING INFORMATION Advise the patient to read FDA-approved patient labeling (Medication Guide). Dosage and Administration: Advise patients that lithium is a mood stabilizer, and should only be taken as directed. Emphasize the importance of compliance with the prescribed treatment and to not adjust the dose of lithium without first consulting their healthcare provider. Inform patients that they will need to have regular blood draws to determine if their dose of lithium is appropriate. Instruct patients not to double the dose if a dose is missed, due to the complexity of individualized dosing and potential for lithium toxicity [see Dosage and Administration ( 2 ), Warnings and Precautions ( 5.1 )] . Lithium Toxicity: Inform patients on adverse reactions related to lithium toxicity that require medical attention. Advise patients to discontinue lithium treatment and contact their healthcare provider if clinical signs of lithium toxicity such as diarrhea, vomiting, tremor, lack of muscle coordination, drowsiness, abnormal heart rhythm or muscular weakness occur [see Warnings and Precautions ( 5.1 )] . Lithium-Induced Polyuria: Counsel patients on the adverse reactions related to lithium-induced polyuria, when to seek medical attention, and the importance of maintaining normal diet with salt and staying hydrated [see Warnings and Precautions ( 5.2 )] . Hyponatremia: Counsel patients on the adverse reactions of hyponatremia, when to seek medical attention, the importance of maintaining a normal diet including adequate salt intake and staying hydrated [see Warnings and Precautions ( 5.3 )] . Salt supplements and additional fluids may be required if excessive losses occur. Serotonin Syndrome: Caution patients about the risk of serotonin syndrome, particularly with the concomitant use of lithium with other serotonergic drugs including SSRIs, SNRIs, triptans, tricyclic antidepressants, fentanyl, tramadol, tryptophan, buspirone, St. John’s Wort, and with drugs that impair metabolism of serotonin (in particular, MAOIs, both those intended to treat psychiatric disorders and also others, such as linezolid) [see Warnings and Precautions ( 5.6 ) and Drug Interactions ( 7 )] . Drug Interactions: Advise patients that many drugs can interact with lithium and to inform their doctor and pharmacist if they are taking any over the counter medication, including herbal medication, or are started on a new prescription [see Drug Interactions ( 7 )] . Somnolence: Tell patients that lithium may cause somnolence particularly when initiating treatment and to be cautious about operating vehicles or hazardous machinery, until they are reasonably certain that lithium treatment does not affect them adversely [see Adverse Reactions ( 6 )]. Pregnancy: Advise pregnant women of the potential risk to a fetus and/or neonate [see Use in Specific Populations ( 8.1 )] . Lactation: Advise women that breastfeeding is not recommended during treatment with lithium [see Use in Specific Populations ( 8.2 )] . Distributed by: Hikma Pharmaceuticals USA Inc. Berkeley Heights, NJ 07922 Revised November 2022 C50000338/01

Medication Guide MEDICATION GUIDE Lithium (LITH-ee-əm) oral solution Lithium Carbonate tablets Lithium Carbonate capsules What is the most important information I should know about Lithium and Lithium Carbonate? Lithium and Lithium Carbonate can cause serious side effects, including: • too much lithium in your blood (lithium toxicity) . Lithium toxicity that can cause death may happen even if the lithium level in your blood is close to the right level for you. Your healthcare provider will need to monitor your blood levels of lithium to find the best dose for you. Take your Lithium or Lithium Carbonate exactly as your healthcare provider tells you to take it. Stop taking Lithium and Lithium Carbonate and call your healthcare provider right away if you have any symptoms of lithium toxicity including: o abnormal heartbeat o vomiting o diarrhea o drowsiness o weak muscles o blurred vision o clumsiness o ringing in your ears o muscle twitching Other symptoms may include: o lightheadedness o confusion o bloating o mood changes o slurred speech o breathing problems o seizure o coma What is Lithium and Lithium Carbonate? Lithium and Lithium Carbonate are prescription medicines called mood-stabilizing agents used alone (monotherapy) for: • the acute (short-term) treatment of people 7 years of age and older with manic and mixed episodes that happen with bipolar I disorder. • maintenance treatment of bipolar I disorder in people 7 years of age and older. It is not known if Lithium and Lithium Carbonate are safe and effective in children under 7 years of age with bipolar I disorder. Who should not take Lithium or Lithium Carbonate? Do not take Lithium or Lithium Carbonate if you are allergic to Lithium or any of the ingredients in Lithium Carbonate or Lithium Citrate. See the end of this Medication Guide for a complete list of ingredients in Lithium and Lithium Carbonate. What should I tell my healthcare provider before taking Lithium or Lithium Carbonate? Before taking Lithium or Lithium Carbonate, tell your healthcare provider if you: • have kidney problems • have heart problems • have breathing problems • have thyroid problems • are pregnant or plan to become pregnant. Lithium and Lithium Carbonate may harm your unborn baby. • are breastfeeding or plan to breastfeed. Lithium and Lithium Carbonate can pass into your breastmilk and may harm your baby. You should not breastfeed during treatment with Lithium or Lithium Carbonate. Talk to your healthcare provider about the best way to feed your baby if you take Lithium or Lithium Carbonate. Tell your healthcare provider about all the medicines you take, including prescription, over-the-counter medicines, vitamins, and herbal supplements. Using Lithium and Lithium Carbonate with certain other medicines may affect each other causing possible side effects. Lithium and Lithium Carbonate may affect the way other medicines work, and other medicines may affect how Lithium and Lithium Carbonate works. Especially tell your healthcare provider if you take: o MAOIs o selective serotonin reuptake inhibitors (SSRIs) o serotonin norepinephrine reuptake inhibitors (SNRIs) o medicines used to treat migraine headaches called triptans o tricyclic antidepressants o fentanyl o antipsychotic medicines o tramadol o tryptophan o buspirone o St. John’s Wort Your healthcare provider can tell you if it is safe to take Lithium or Lithium Carbonate with your other medicines. Do not start or stop any medicines while taking Lithium or Lithium Carbonate without talking to your healthcare provider first. Know the medicines you take. Keep a list of your medicines to show your healthcare provider and pharmacist when you get a new medicine. How should I take Lithium and Lithium Carbonate? o Take your Lithium and Lithium Carbonate exactly as prescribed by your healthcare provider. o Your healthcare provider will do certain blood tests before starting and during treatment with Lithium and Lithium Carbonate. o Your healthcare provider may change your dose if needed. Do not change your dose on your own. o Do not double your dose if a dose is missed. Talk with your healthcare provider if you miss a dose. o Do not stop taking Lithium or Lithium Carbonate suddenly without talking to your healthcare provider. o Your healthcare provider may change your Lithium or Lithium Carbonate dose to make sure you are taking the dose that is right for you. o If you take too much Lithium or Lithium Carbonate, call your healthcare provider or poison control center, or go to the nearest hospital emergency room right away. In case of poisoning, call your poison control center at 1-800-222-1222. What should I avoid while taking Lithium or Lithium Carbonate? o Do not drive, operate heavy machinery, or do other dangerous activities when you start taking Lithium or Lithium Carbonate, when your dose is changed, or until you know how Lithium or Lithium Carbonate affects you. Lithium or Lithium Carbonate can make you sleepy. Talk to your healthcare provider about these activities. o Avoid becoming overheated or dehydrated during exercise and in hot weather. Follow your healthcare provider instructions about the type and amount of liquids you should drink. In some cases, drinking too much liquid can be as unsafe as not drinking enough. o Do not change the amount of salt in your diet. Changing the amount of salt in your diet could change the amount of Lithium or Lithium Carbonate in your blood. What are the possible side effects of Lithium and Lithium Carbonate? See “What is the most important information I should know about Lithium and Lithium Carbonate?” Lithium and Lithium Carbonate may cause serious side effects, including: • kidney problems. People who take Lithium or Lithium Carbonate may have to urinate often (polyuria) and have other kidney problems that may affect how their kidneys work. These problems can happen within a few weeks of starting to take Lithium or Lithium Carbonate or after taking Lithium or Lithium Carbonate for a long time. • low levels of sodium (salt) in your blood (hyponatremia). Lithium and Lithium Carbonate can cause you to lose sodium. Talk to your healthcare provider about your diet and how much fluid you are drinking when starting Lithium or Lithium Carbonate. If you have been sweating more than usual or have had diarrhea, you may need extra salt and more fluids. Talk to your healthcare provider if this happens. • neurological problems. People who take Lithium or Lithium Carbonate with certain other medicines called antipsychotics may have symptoms such as weakness, tiredness, fever, tremors, and confusion. Talk to your healthcare provider if this happens. Ask if you are not sure about the medicines you take. • serotonin syndrome. A potentially life-threatening problem called serotonin syndrome can happen when you take Lithium or Lithium Carbonate while you take certain medicines called serotonergic and MAOIs. Symptoms of serotonin syndrome include: o agitation o seeing things that are not there o confusion o coma o rapid pulse o high or low blood pressure o dizziness o sweating o flushing o fever o tremors o stiff muscles o muscle twitching o become unstable o seizures o nausea o vomiting o diarrhea • thyroid problems. • high calcium levels in your blood (hypercalcemia) and changes in your parathyroid gland (hyperparathyroidism) that may not go away when you stop taking Lithium or Lithium Carbonate. • heart problems. People who take Lithium or Lithium Carbonate may find out they also have a heart problem called Brugada Syndrome. People who have unexplained fainting or who have a family history of sudden unexplained death before 45 years of age may have Brugada Syndrome and not know it. If you faint or feel abnormal heartbeats, talk to your healthcare provider right away. • increased pressure in the brain and swelling in the eye (pseudotumor cerebri) that can cause vision problems or blindness. If you have severe headaches behind your eyes, ringing in the ears, blurred vision, double vision, or brief periods of blindness, talk to your health care provider right away. The most common side effects of Lithium and Lithium Carbonate, include: • Adults with manic or mixed episodes of bipolar I disorder: o hand trembling o excessive urination o increased thirst o nausea o general discomfort when you start treatment • Children 7 to 17 years of age with manic or mixed episodes of bipolar I disorder: o excessive urination o thyroid problems o hand trembling o excessive thirst o dizziness o rash o difficulty walking o decreased appetite o blurred vision o nausea o vomiting These are not all the possible side effects of Lithium and Lithium Carbonate. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. How should I store Lithium and Lithium Carbonate? Store Lithium and Lithium Carbonate at room temperature, between 68°F to 77°F (20°C to 25°C). Keep capsules and tablets dry and keep in a tightly closed container. Keep Lithium, Lithium Carbonate, and all medicines out of the reach of children. General information about the safe and effective use of Lithium and Lithium Carbonate. Medicines are sometimes prescribed for purposes other than those listed in a Medication Guide. Do not use Lithium or Lithium Carbonate for a condition for which it was not prescribed. Do not give Lithium or Lithium Carbonate to other people, even if they have the same symptoms you have. It may harm them. You can ask your pharmacist or healthcare provider for information about Lithium or Lithium Carbonate that is written for healthcare professionals. For more information about Lithium and Lithium Carbonate, please call West-Ward Pharmaceuticals Corp. at 1-800-962-8364. What are the ingredients in Lithium and Lithium Carbonate? Active ingredient : lithium carbonate, USP (tablets and capsules) and lithium citrate (oral solution). Inactive ingredients: Tablets : calcium stearate, microcrystalline cellulose, povidone, purified water, sodium lauryl sulfate, and sodium starch glycolate. Capsules : talc. The capsule shells contain black monogramming ink, FD&C Red No. 40 (300 mg and 600 mg only), gelatin and titanium dioxide. The black monogramming ink contains ammonium hydroxide, ethanol, iron oxide black, isopropyl alcohol, N-butyl alcohol, propylene glycol and shellac glaze. Oral solution : alcohol 0.3%, citric acid, purified water, raspberry blend, sodium benzoate and sorbitol solution. Distributed by: Hikma Pharmaceuticals USA Inc., Berkeley Heights, NJ 07922 This Medication Guide has been approved by the U.S. Food and Drug Administration. Revised November 2022 C50000338/01

14 CLINICAL STUDIES The safety and efficacy of lithium as a treatment for acute manic or mixed episodes of bipolar I disorder in pediatric patients (ages 7 to ≤18 years) was demonstrated in an 8-week, randomized, placebo-controlled, parallel group study (NCT01166425). In this study, 81 patients with a Young Mania Rating Scale (YMRS) score of 20 or more were randomized to receive lithium or placebo in a 2:1 ratio. Patients weighing more than 30 kg started lithium at 300 mg three times daily (900 mg/day) and could increase their dose by 300 mg every 3 days. Patients weighing 20 to 30 kg started lithium at 300 mg twice daily (600 mg/day) and could increase their dose by 300 mg weekly. No patients weighing less than 20 kg were enrolled. Lithium (mean serum level 0.98 ± 0.47 mEq/L) was statistically significantly superior to placebo in decreasing acute mania or mixed states as measured by the YMRS (see Table 5). In a 28-week randomized withdrawal analysis, 31 pediatric patients stabilized on lithium were assigned to either continue lithium or switch to placebo. The group receiving lithium demonstrated superiority to those receiving placebo in all-cause discontinuation (see Table 5). Table 5: Primary Efficacy Results Analysis Treatment Group Change From Baseline at Week 8 in YMRS Summary Score N Mean Baseline Score (SD) LS Mean Change from Baseline (SE) Difference Difference (drug minus placebo) in least-squares mean change from baseline. (95% CI) Acute Efficacy Lithium: 53 29.5 (5.6) -12.9 (3.1) -5.5 (-10.5, -0.5) Placebo: 28 30.0 (6.0) -7.3 (3.1) Analysis Treatment Group Patients analyzed by received treatment. All-cause Discontinuation N Number of Discontinued Subjects Hazard Ratio Lithium to placebo. (95% CI) Randomized Withdrawal Lithium: 17 7 (41.2%) 0.28 (0.10, 0.78) Placebo: 14 11 (78.6%) SD: standard deviation; SE: standard error; LS Mean: least-squares mean; CI: confidence interval.

8.5 Geriatric Use Clinical studies of lithium carbonate tablets did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in response between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other treatment. Lithium is known to be substantially excreted by the kidneys, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.

8.4 Pediatric Use The safety and effectiveness of lithium for monotherapy treatment of acute manic or mixed episodes of bipolar I disorder and maintenance monotherapy of bipolar I disorder in pediatric patients ages 7 to 17 years of age have been established in an acute-phase clinical trial of 8 weeks in duration followed by a 28-week randomized withdrawal phase [see Dosage and Administration ( 2.1 ), Adverse Reactions ( 6.1 ), Clinical Pharmacology ( 12.3 ), Clinical Studies ( 14 )] . The safety and effectiveness of lithium has not been established in pediatric patients less than 7 years of age with bipolar I disorder.

8.1 Pregnancy Risk Summary: Lithium may cause harm when administered to a pregnant woman. Early voluntary reports to international birth registries suggested an increase in cardiovascular malformations, especially for Ebstein’s anomaly, with first trimester use of lithium. Subsequent case-control and cohort studies indicate that the increased risk for cardiac malformations is likely to be small; however, the data are insufficient to establish a drug-associated risk. There are concerns for maternal and/or neonatal lithium toxicity during late pregnancy and the postpartum period [see Clinical Considerations] . Published animal developmental and toxicity studies in mice and rats report an increased incidence of fetal mortality, decreased fetal weight, increased fetal skeletal abnormalities, and cleft palate (mouse fetuses only) with oral doses of lithium that produced serum concentrations similar to the human therapeutic range. Other published animal studies report adverse effects on embryonic implantation in rats after lithium administration. Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population(s) is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations: Dose Adjustments During Pregnancy and the Postpartum Period: If the decision is made to continue lithium treatment during pregnancy, serum lithium concentrations should be monitored and the dosage adjusted during pregnancy. Two to three days prior to delivery, lithium dosage should be decreased or discontinued to reduce the risk of maternal and/or neonatal toxicity. Lithium may be restarted in the post-partum period at preconception doses in medically stable patients as long as serum lithium levels are closely monitored [see Dosage and Administration ( 2.4 ), Warnings and Precautions ( 5.1 )] . Fetal/Neonatal Adverse Reactions: Lithium toxicity may occur in neonates who were exposed to lithium in late pregnancy. A floppy baby syndrome including neurological, cardiac, and hepatic abnormalities that are similar to those seen with lithium toxicity in adults have been observed. Symptoms include hypotonia, respiratory distress syndrome, cyanosis, lethargy, feeding difficulties, depressed neonatal reflexes, neonatal depression, apnea, and bradycardia. Monitor neonates and provide supportive care until lithium is excreted and toxic signs disappear, which may take up to 14 days. Consider fetal echocardiography between 16 and 20 weeks gestation in a woman with first trimester lithium exposure because of the potential increased risk of cardiac malformations.

8 USE IN SPECIFIC POPULATIONS • Pregnancy: May cause fetal and/or neonatal harm ( 8.1 ) • Renal Impairment: Use caution during dose selection, starting with dosages less than those for patients with normal renal function while carefully monitoring for side effects ( 2.5 , 6 ) 8.1 Pregnancy Risk Summary: Lithium may cause harm when administered to a pregnant woman. Early voluntary reports to international birth registries suggested an increase in cardiovascular malformations, especially for Ebstein’s anomaly, with first trimester use of lithium. Subsequent case-control and cohort studies indicate that the increased risk for cardiac malformations is likely to be small; however, the data are insufficient to establish a drug-associated risk. There are concerns for maternal and/or neonatal lithium toxicity during late pregnancy and the postpartum period [see Clinical Considerations] . Published animal developmental and toxicity studies in mice and rats report an increased incidence of fetal mortality, decreased fetal weight, increased fetal skeletal abnormalities, and cleft palate (mouse fetuses only) with oral doses of lithium that produced serum concentrations similar to the human therapeutic range. Other published animal studies report adverse effects on embryonic implantation in rats after lithium administration. Advise pregnant women of the potential risk to a fetus. The background risk of major birth defects and miscarriage for the indicated population(s) is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations: Dose Adjustments During Pregnancy and the Postpartum Period: If the decision is made to continue lithium treatment during pregnancy, serum lithium concentrations should be monitored and the dosage adjusted during pregnancy. Two to three days prior to delivery, lithium dosage should be decreased or discontinued to reduce the risk of maternal and/or neonatal toxicity. Lithium may be restarted in the post-partum period at preconception doses in medically stable patients as long as serum lithium levels are closely monitored [see Dosage and Administration ( 2.4 ), Warnings and Precautions ( 5.1 )] . Fetal/Neonatal Adverse Reactions: Lithium toxicity may occur in neonates who were exposed to lithium in late pregnancy. A floppy baby syndrome including neurological, cardiac, and hepatic abnormalities that are similar to those seen with lithium toxicity in adults have been observed. Symptoms include hypotonia, respiratory distress syndrome, cyanosis, lethargy, feeding difficulties, depressed neonatal reflexes, neonatal depression, apnea, and bradycardia. Monitor neonates and provide supportive care until lithium is excreted and toxic signs disappear, which may take up to 14 days. Consider fetal echocardiography between 16 and 20 weeks gestation in a woman with first trimester lithium exposure because of the potential increased risk of cardiac malformations. 8.2 Lactation Risk Summary: Limited published data reports the presence of lithium carbonate in human milk with breast milk levels measured at 0.12 to 0.7 mEq or 40 to 45% of maternal plasma levels. Infants exposed to lithium during breastfeeding may have plasma levels that are 30 to 40% of maternal plasma levels. Signs and symptoms of lithium toxicity such as hypertonia, hypothermia, cyanosis, and ECG changes have been reported in some breastfed neonates and infants. Increased prolactin levels have been measured in lactating women, but the effects on milk production are not known. Breastfeeding is not recommended with maternal lithium use; however, if a woman chooses to breastfeed, the infant should be closely monitored for signs of lithium toxicity. Discontinue breastfeeding if a breastfed infant develops lithium toxicity. Clinical Considerations: Consider regular monitoring of lithium levels and thyroid function in a breastfed infant. 8.4 Pediatric Use The safety and effectiveness of lithium for monotherapy treatment of acute manic or mixed episodes of bipolar I disorder and maintenance monotherapy of bipolar I disorder in pediatric patients ages 7 to 17 years of age have been established in an acute-phase clinical trial of 8 weeks in duration followed by a 28-week randomized withdrawal phase [see Dosage and Administration ( 2.1 ), Adverse Reactions ( 6.1 ), Clinical Pharmacology ( 12.3 ), Clinical Studies ( 14 )] . The safety and effectiveness of lithium has not been established in pediatric patients less than 7 years of age with bipolar I disorder. 8.5 Geriatric Use Clinical studies of lithium carbonate tablets did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in response between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other treatment. Lithium is known to be substantially excreted by the kidneys, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function. 8.6 Renal Impairment As lithium is eliminated primarily through the kidney, lithium renal clearance is decreased in patients with abnormal renal function, and the risk of lithium intoxication increases considerably in this setting. Lithium should not be used in severe renal insufficiency (creatinine clearance less than 30 mL/min evaluated by Cockcroft-Gault), especially if the condition requires adherence to a low-sodium diet [see Dosage and Administration ( 2.5 )] . Start patients with mild to moderately impaired renal function (creatinine clearance 30 to 89 mL/min evaluated by Cockcroft-Gault) with lower doses of lithium and titrate slowly while frequently monitoring serum lithium concentrations and for signs of lithium toxicity [see Dosage and Administration ( 2.5 )].

16 HOW SUPPLIED/STORAGE AND HANDLING Lithium Oral Solution USP, 8 mEq per 5 mL. Lithium Oral Solution, USP is supplied as a clear, colorless to slightly amber or red solution. NDC 0054-3527-63: Bottle of 500 mL Store and Dispense Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). [See USP Controlled Room Temperature.] Dispense in a tight, child-resistant container as defined in the USP/NF. Lithium Carbonate Tablets, USP 300 mg supplied as white to off-white, biconvex tablet, scored on one side with product identification “54 452” debossed on the other side. NDC 0054-8528-25: 10x10 Unit-Dose (For Institutional Use Only) NDC 0054-4527-25: Bottle of 100 Tablets NDC 0054-4527-31: Bottle of 1,000 Tablets Lithium Carbonate Capsules, USP 150 mg supplied as opaque white capsules imprinted with product identification “54 213” on both caps and bodies and containing a white powder. NDC 0054-8526-25: 10x10 Unit-Dose (For Institutional Use Only). NDC 0054-2526-25: Bottle of 100 Capsules 300 mg supplied as opaque, light pink-colored capsules imprinted with product identification “54 463” on both caps and bodies and containing a white powder. NDC 0054-8527-25: 10x10 Unit-Dose (For Institutional Use Only). NDC 0054-2527-25: Bottle of 100 Capsules NDC 0054-2527-31: Bottle of 1,000 Capsules 600 mg supplied as gelatin capsules having opaque, light pink-colored caps with white bodies, imprinted with product identification “54 702” on both caps and bodies and containing a white powder. NDC 0054-8531-25: 10x10 Unit-Dose (For Institutional Use Only). NDC 0054-2531-25: Bottle of 100 Capsules Storage Store at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F). [See USP Controlled Room Temperature.] Dispense in a tight, child-resistant container as defined in the USP/NF. PROTECT FROM MOISTURE.

WARNING: LITHIUM TOXICITY Lithium toxicity is closely related to serum lithium concentrations, and can occur at doses close to therapeutic concentrations. Facilities for prompt and accurate serum lithium determinations should be available before initiating treatment [see Dosage and Administration ( 2.3 ), Warnings and Precautions ( 5.1 )] . WARNING: LITHIUM TOXICITY See full prescribing information for complete boxed warning. Lithium toxicity is closely related to serum lithium concentrations, and can occur at doses close to therapeutic concentrations. Facilities for prompt and accurate serum lithium determinations should be available before initiating therapy ( 2.3 , 5.1 ).