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FDA Drug information

Clindamycin Phosphate and Benzoyl Peroxide

Read time: 1 mins
Marketing start date: 03 Dec 2024

Summary of product characteristics


Adverse Reactions

6 ADVERSE REACTIONS The following adverse reaction is described in more detail in the Warnings and Precautions section of the label: Colitis [see Warnings and Precautions (5.1) ]. The most common adverse reactions are: burning sensation (0.4%); contact dermatitis (0.4%); pruritus (0.4%); and rash (0.4%). ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Taro Pharmaceuticals U.S.A., Inc., at 1-866-923-4914 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 observed in clinical trials of another drug and may not reflect the rates observed in clinical practice. These adverse reactions occurred in less than 0.5% of subjects treated with clindamycin phosphate and benzoyl peroxide gel: burning sensation (0.4%); contact dermatitis (0.4%); pruritus (0.4%); and rash (0.4%). During the clinical trial, subjects were assessed for local cutaneous signs and symptoms of erythema, scaling, itching, burning and stinging. Most local skin reactions either were the same as baseline or increased and peaked around Week 4 and were near or improved from baseline levels by Week 12. The percentage of subjects that had symptoms present before treatment (at baseline), during treatment, and the percent with symptoms present at Week 12 are shown in Table 1. Table 1: Percent of Subjects with Local Skin Reactions. Results from the Phase 3 Trial (N = 243) Before Treatment (Baseline) During Treatment End of Treatment (Week 12) Mild Mod. Mod. = Moderate Severe Mild Mod. Severe Mild Mod. Severe Erythema 20 6 0 28 5 <1 15 2 0 Scaling 10 1 0 19 3 0 10 <1 0 Itching 14 3 <1 15 3 0 7 2 0 Burning 5 <1 <1 7 1 <1 3 <1 0 Stinging 5 <1 0 7 0 <1 3 0 <1 6.2 Postmarketing Experience Because postmarketing adverse 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. Anaphylaxis, as well as allergic reactions leading to hospitalizations, has been reported in postmarketing use of products containing clindamycin phosphate/benzoyl peroxide.

Contraindications

4 CONTRAINDICATIONS Clindamycin phosphate and benzoyl peroxide gel is contraindicated in: Patients who have demonstrated hypersensitivity (e.g., anaphylaxis) to clindamycin, benzoyl peroxide, any components of the formulation, or lincomycin. ( 4.1 ) Patients with a history of regional enteritis, ulcerative colitis, or antibiotic-associated colitis. ( 4.2 ) 4.1 Hypersensitivity Clindamycin phosphate and benzoyl peroxide gel is contraindicated in those individuals who have shown hypersensitivity to clindamycin, benzoyl peroxide, any components of the formulation, or lincomycin. Anaphylaxis, as well as allergic reactions leading to hospitalization, has been reported in postmarketing use with clindamycin phosphate and benzoyl peroxide gel [see Postmarketing Experience (6.2) ] . 4.2 Colitis/Enteritis Clindamycin phosphate and benzoyl peroxide gel is contraindicated in patients with a history of regional enteritis, ulcerative colitis, or antibiotic-associated colitis [see Warnings and Precautions (5.1) ] .

Description

11 DESCRIPTION Clindamycin Phosphate and Benzoyl Peroxide Gel is a combination product with two active ingredients in a white to off-white, opaque, smooth, aqueous gel formulation intended for topical use. Clindamycin phosphate is a water-soluble ester of the semisynthetic antibiotic produced by a 7(S)-chloro-substitution of the 7(R)-hydroxyl group of the parent antibiotic lincomycin. The chemical name for clindamycin phosphate is Methyl 7-chloro-6,7,8-trideoxy-6-(1-methyl-trans-4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-L-threo-α-D-galacto-octopyranoside 2-(dihydrogen phosphate). The structural formula for clindamycin phosphate is represented below: Clindamycin phosphate: Molecular Formula: C 18 H 34 ClN 2 O 8 PS Molecular Weight: 504.97 Benzoyl peroxide is an antibacterial and keratolytic agent. The structural formula for benzoyl peroxide is represented below: Benzoyl peroxide: Molecular Formula: C 14 H 10 O 4 Molecular Weight: 242.23 Clindamycin Phosphate and Benzoyl Peroxide Gel contains the following inactive ingredients: carbomer homopolymer type C, poloxamer 124, potassium hydroxide, propylene glycol, and purified water. Each gram of Clindamycin Phosphate and Benzoyl Peroxide Gel contains 12 mg (1.2%) clindamycin phosphate, equivalent to 10 mg (1%) clindamycin, and 37.5 mg (3.75%) benzoyl peroxide. Chemical Structure Chemical Structure

Dosage And Administration

2 DOSAGE AND ADMINISTRATION Before applying clindamycin phosphate and benzoyl peroxide gel, wash the face gently with a mild soap, rinse with warm water, and pat the skin dry. Apply a pea-sized amount of clindamycin phosphate and benzoyl peroxide gel to the face once daily. Avoid the eyes, mouth, mucous membranes, or areas of broken skin. Use of clindamycin phosphate and benzoyl peroxide gel beyond 12 weeks has not been evaluated. Clindamycin phosphate and benzoyl peroxide gel is not for oral, ophthalmic, or intravaginal use. Apply a pea-sized amount of clindamycin phosphate and benzoyl peroxide gel to the face once daily. ( 2 ) Not for oral, ophthalmic, or intravaginal use. ( 2 )

Indications And Usage

1 INDICATIONS AND USAGE Clindamycin phosphate and benzoyl peroxide gel, 1.2%/3.75% is indicated for the topical treatment of acne vulgaris in patients 12 years of age and older. Clindamycin phosphate and benzoyl peroxide gel is a combination of clindamycin phosphate (a lincosamide antibacterial) and benzoyl peroxide indicated for the topical treatment of acne vulgaris in patients 12 years of age and older. ( 1 )

Adverse Reactions Table

Table 1: Percent of Subjects with Local Skin Reactions. Results from the Phase 3 Trial (N = 243)
Before Treatment (Baseline)During TreatmentEnd of Treatment (Week 12)
MildMod.Mod. = ModerateSevereMildMod.SevereMildMod.Severe
Erythema2060285<11520
Scaling1010193010<10
Itching143<11530720
Burning5<1<171<13<10
Stinging5<1070<130<1

Drug Interactions

7 DRUG INTERACTIONS Avoid using clindamycin phosphate and benzoyl peroxide gel in combination with topical or oral erythromycin-containing products because of its clindamycin component. ( 7.1 ) 7.1 Erythromycin Avoid using clindamycin phosphate and benzoyl peroxide gel in combination with topical or oral erythromycin-containing products due to its clindamycin component. In vitro studies have shown antagonism between erythromycin and clindamycin. The clinical significance of this in vitro antagonism is not known. 7.2 Neuromuscular Blocking Agents Clindamycin has been shown to have neuromuscular blocking properties that may enhance the action of other neuromuscular blocking agents. Clindamycin phosphate and benzoyl peroxide gel should be used with caution in patients receiving such agents.

Clinical Pharmacology

12 CLINICAL PHARMACOLOGY 12.1 Mechanism of Action Clindamycin: Clindamycin is a lincosamide antibacterial [see Microbiology (12.4) ] . Benzoyl Peroxide: Benzoyl peroxide is an oxidizing agent with bactericidal and keratolytic effects but the precise mechanism of action is unknown. 12.3 Pharmacokinetics The systemic absorption of clindamycin phosphate and benzoyl peroxide gel has not been evaluated. The systemic absorption of clindamycin was investigated in an open-label, multiple-dose trial in 16 adult subjects with moderate to severe acne vulgaris treated with 1 gram of a marketed gel containing clindamycin 1%/benzoyl peroxide 2.5% applied to the face once daily for 30 days. This product has the same formulation as clindamycin phosphate and benzoyl peroxide gel but with a lower concentration of benzoyl peroxide. Twelve subjects (75%) had at least one quantifiable clindamycin plasma concentration above the lower limit of quantification (LOQ = 0.5 ng/mL) on Day 1 or Day 30. On Day 1, the mean (± standard deviation) peak plasma concentrations (C max ) was 0.78 ± 0.22 ng/mL (n=9 with measurable concentrations), and the mean AUC 0-t was 5.29 ± 0.81 h∙ng/mL (n=4). On Day 30, the mean C max was 1.22 ± 0.88 ng/mL (n=10), and the mean AUC 0-t was 8.42 ± 6.01 h∙ng/mL (n=6). Clindamycin plasma concentrations were below LOQ in all subjects at 24 hours post-dose on the three tested days (Day 1, 15, and 30). Benzoyl peroxide has been shown to be absorbed by the skin where it is converted to benzoic acid. 12.4 Microbiology Clindamycin binds to the 50S ribosomal subunits of susceptible bacteria and prevents elongation of peptide chains by interfering with peptidyl transfer, thereby suppressing bacterial protein synthesis. Clindamycin and benzoyl peroxide individually have been shown to have in vitro activity against Propionibacterium acnes , an organism which has been associated with acne vulgaris. In an in vitro study, the minimum inhibitory concentration (MIC) for benzoyl peroxide against Propionibacterium acnes is 128 mg/L. The clinical significance of this activity against P. acnes is not known. P. acnes resistance to clindamycin has been documented. Resistance to clindamycin is often associated with resistance to erythromycin.

Mechanism Of Action

12.1 Mechanism of Action Clindamycin: Clindamycin is a lincosamide antibacterial [see Microbiology (12.4) ] . Benzoyl Peroxide: Benzoyl peroxide is an oxidizing agent with bactericidal and keratolytic effects but the precise mechanism of action is unknown.

Pharmacokinetics

12.3 Pharmacokinetics The systemic absorption of clindamycin phosphate and benzoyl peroxide gel has not been evaluated. The systemic absorption of clindamycin was investigated in an open-label, multiple-dose trial in 16 adult subjects with moderate to severe acne vulgaris treated with 1 gram of a marketed gel containing clindamycin 1%/benzoyl peroxide 2.5% applied to the face once daily for 30 days. This product has the same formulation as clindamycin phosphate and benzoyl peroxide gel but with a lower concentration of benzoyl peroxide. Twelve subjects (75%) had at least one quantifiable clindamycin plasma concentration above the lower limit of quantification (LOQ = 0.5 ng/mL) on Day 1 or Day 30. On Day 1, the mean (± standard deviation) peak plasma concentrations (C max ) was 0.78 ± 0.22 ng/mL (n=9 with measurable concentrations), and the mean AUC 0-t was 5.29 ± 0.81 h∙ng/mL (n=4). On Day 30, the mean C max was 1.22 ± 0.88 ng/mL (n=10), and the mean AUC 0-t was 8.42 ± 6.01 h∙ng/mL (n=6). Clindamycin plasma concentrations were below LOQ in all subjects at 24 hours post-dose on the three tested days (Day 1, 15, and 30). Benzoyl peroxide has been shown to be absorbed by the skin where it is converted to benzoic acid.

Effective Time

20230127

Version

3

Dosage Forms And Strengths

3 DOSAGE FORMS AND STRENGTHS Gel, 1.2%/3.75% Each gram of clindamycin phosphate and benzoyl peroxide gel contains 12 mg (1.2%) clindamycin phosphate, equivalent to 10 mg (1%) clindamycin, and 37.5 mg (3.75%) benzoyl peroxide in a white to off-white, opaque, smooth gel. Gel, 1.2% clindamycin phosphate/3.75% benzoyl peroxide

Spl Product Data Elements

Clindamycin Phosphate and Benzoyl Peroxide Clindamycin Phosphate and Benzoyl Peroxide Clindamycin Phosphate Clindamycin Benzoyl Peroxide Benzoyl Peroxide CARBOMER HOMOPOLYMER TYPE C (ALLYL PENTAERYTHRITOL CROSSLINKED) potassium hydroxide propylene glycol water white to off-white

Carcinogenesis And Mutagenesis And Impairment Of Fertility

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenicity, mutagenicity, and impairment of fertility testing of clindamycin phosphate and benzoyl peroxide gel have not been performed. Benzoyl peroxide has been shown to be a tumor promoter and progression agent in a number of animal studies. Benzoyl peroxide in acetone at doses of 5 and 10 mg administered topically twice per week for 20 weeks induced skin tumors in transgenic Tg∙AC mice. The clinical significance of this is unknown. Carcinogenicity studies have been conducted with a gel formulation containing 1% clindamycin and 5% benzoyl peroxide. In a 2-year dermal carcinogenicity study in mice, treatment with the gel formulation at doses of 900, 2700, and 15000 mg/kg/day (1.8, 5.4, and 30 times the MRHD for clindamycin and 2.4, 7.2, and 40 times the MRHD for benzoyl peroxide, respectively, based on BSA comparisons) did not cause any increase in tumors. However, topical treatment with a different gel formulation containing 1% clindamycin and 5% benzoyl peroxide at doses of 100, 500, and 2000 mg/kg/day caused a dose-dependent increase in the incidence of keratoacanthoma at the treated skin site of male rats in a 2-year dermal carcinogenicity study in rats. In an oral (gavage) carcinogenicity study in rats, treatment with the gel formulation at doses of 300, 900, and 3000 mg/kg/day (1.2, 3.6, and 12 times the MRHD for clindamycin and 1.6, 4.8, and 16 times the MRHD for benzoyl peroxide, respectively, based on BSA comparisons) for up to 97 weeks did not cause any increase in tumors. Clindamycin phosphate was not genotoxic in the human lymphocyte chromosome aberration assay. Benzoyl peroxide has been found to cause DNA strand breaks in a variety of mammalian cell types, to be mutagenic in S. typhimurium tests by some but not all investigators, and to cause sister chromatid exchanges in Chinese hamster ovary cells. Fertility studies have not been performed with clindamycin phosphate and benzoyl peroxide gel or benzoyl peroxide, but fertility and mating ability have been studied with clindamycin. Fertility studies in rats treated orally with up to 300 mg/kg/day of clindamycin (approximately 120 times the MRHD for clindamycin based on BSA comparisons) revealed no effects on fertility or mating ability.

Nonclinical Toxicology

13 NONCLINICAL TOXICOLOGY 13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility Carcinogenicity, mutagenicity, and impairment of fertility testing of clindamycin phosphate and benzoyl peroxide gel have not been performed. Benzoyl peroxide has been shown to be a tumor promoter and progression agent in a number of animal studies. Benzoyl peroxide in acetone at doses of 5 and 10 mg administered topically twice per week for 20 weeks induced skin tumors in transgenic Tg∙AC mice. The clinical significance of this is unknown. Carcinogenicity studies have been conducted with a gel formulation containing 1% clindamycin and 5% benzoyl peroxide. In a 2-year dermal carcinogenicity study in mice, treatment with the gel formulation at doses of 900, 2700, and 15000 mg/kg/day (1.8, 5.4, and 30 times the MRHD for clindamycin and 2.4, 7.2, and 40 times the MRHD for benzoyl peroxide, respectively, based on BSA comparisons) did not cause any increase in tumors. However, topical treatment with a different gel formulation containing 1% clindamycin and 5% benzoyl peroxide at doses of 100, 500, and 2000 mg/kg/day caused a dose-dependent increase in the incidence of keratoacanthoma at the treated skin site of male rats in a 2-year dermal carcinogenicity study in rats. In an oral (gavage) carcinogenicity study in rats, treatment with the gel formulation at doses of 300, 900, and 3000 mg/kg/day (1.2, 3.6, and 12 times the MRHD for clindamycin and 1.6, 4.8, and 16 times the MRHD for benzoyl peroxide, respectively, based on BSA comparisons) for up to 97 weeks did not cause any increase in tumors. Clindamycin phosphate was not genotoxic in the human lymphocyte chromosome aberration assay. Benzoyl peroxide has been found to cause DNA strand breaks in a variety of mammalian cell types, to be mutagenic in S. typhimurium tests by some but not all investigators, and to cause sister chromatid exchanges in Chinese hamster ovary cells. Fertility studies have not been performed with clindamycin phosphate and benzoyl peroxide gel or benzoyl peroxide, but fertility and mating ability have been studied with clindamycin. Fertility studies in rats treated orally with up to 300 mg/kg/day of clindamycin (approximately 120 times the MRHD for clindamycin based on BSA comparisons) revealed no effects on fertility or mating ability.

Application Number

ANDA208683

Brand Name

Clindamycin Phosphate and Benzoyl Peroxide

Generic Name

Clindamycin Phosphate and Benzoyl Peroxide

Product Ndc

51672-1403

Product Type

HUMAN PRESCRIPTION DRUG

Route

TOPICAL

Microbiology

12.4 Microbiology Clindamycin binds to the 50S ribosomal subunits of susceptible bacteria and prevents elongation of peptide chains by interfering with peptidyl transfer, thereby suppressing bacterial protein synthesis. Clindamycin and benzoyl peroxide individually have been shown to have in vitro activity against Propionibacterium acnes , an organism which has been associated with acne vulgaris. In an in vitro study, the minimum inhibitory concentration (MIC) for benzoyl peroxide against Propionibacterium acnes is 128 mg/L. The clinical significance of this activity against P. acnes is not known. P. acnes resistance to clindamycin has been documented. Resistance to clindamycin is often associated with resistance to erythromycin.

Package Label Principal Display Panel

PRINCIPAL DISPLAY PANEL - 50 g Bottle Carton NDC 51672-1403-4 Clindamycin Phosphate and Benzoyl Peroxide Gel 1.2%/3.75% 50 g FOR TOPICAL USE ONLY. Not for ophthalmic, oral or intravaginal use One premixed 50 gram pump dispenser Rx only TARO Keep this and all medications out of the reach of children. PRINCIPAL DISPLAY PANEL - 50 g Bottle Carton

Spl Unclassified Section

Manufactured by: Taro Pharmaceuticals Inc., Brampton, Ontario, Canada L6T 1C1 Distributed by: Taro Pharmaceuticals U.S.A., Inc. , Hawthorne, NY 10532 Revised: January 2023 5211506 25

Information For Patients

17 PATIENT COUNSELING INFORMATION Advise the patient to read the FDA-approved patient labeling (Patient Information). Patients who develop allergic reactions, such as severe swelling or shortness of breath, should discontinue use and contact their physician immediately. Clindamycin phosphate and benzoyl peroxide gel may cause irritation, such as erythema, scaling, itching, or burning, especially when used in combination with other topical acne therapies. Patients should limit excessive or prolonged exposure to sunlight. To minimize exposure to sunlight, a hat or other clothing should be worn. Sunscreen may also be used. Clindamycin phosphate and benzoyl peroxide gel may bleach hair or colored fabric.

Instructions For Use

INSTRUCTIONS FOR USE Clindamycin Phosphate (klin'' da mye' sin fos' fate) and Benzoyl Peroxide (BEN-zoe-il per-OX-ide) Gel, 1.2%/3.75% The Patient Information and Instructions for Use have been approved by the U.S. Food and Drug Administration. Revised: January 2023 Important Information: Clindamycin phosphate and benzoyl peroxide gel is for use on skin only (topical use). Clindamycin phosphate and benzoyl peroxide gel is not for use in your mouth, eyes or vagina. Read this Instructions for Use before you start using clindamycin phosphate and benzoyl peroxide gel and each time you get a refill. There may be new information. This information does not take the place of talking with your doctor about your medical condition or treatment. Apply clindamycin phosphate and benzoyl peroxide gel to your face 1 time each day as prescribed. Before you apply clindamycin phosphate and benzoyl peroxide gel, wash your face gently with a mild soap, rinse with warm water, and pat your skin dry. To apply clindamycin phosphate and benzoyl peroxide gel to your face, use the pump to dispense one pea-sized amount of clindamycin phosphate and benzoyl peroxide gel onto your fingertip. See Figure 1 . One pea-sized amount of clindamycin phosphate and benzoyl peroxide gel should be enough to cover your entire face. Figure 1 Dot the one pea-sized amount of clindamycin phosphate and benzoyl peroxide gel onto six areas of your face (chin, left cheek, right cheek, nose, left forehead, right forehead). See Figure 2 . Figure 2 Spread the gel over your face and gently rub it in. It is important to spread the gel over your entire face . If your doctor tells you to put clindamycin phosphate and benzoyl peroxide gel on other areas of your skin with acne, be sure to ask how much you should use. Wash your hands with soap and water after applying clindamycin phosphate and benzoyl peroxide gel. How should I store Clindamycin Phosphate and Benzoyl Peroxide Gel? Store clindamycin phosphate and benzoyl peroxide gel at room temperature at or below 77°F (25°C). Do not freeze clindamycin phosphate and benzoyl peroxide gel. Throw away (discard) clindamycin phosphate and benzoyl peroxide gel that has passed the expiration date. Store pump upright. Keep the container tightly closed Keep clindamycin phosphate and benzoyl peroxide gel and all medicines out of the reach of children. Figure 1 Figure 2

Instructions For Use Table

INSTRUCTIONS FOR USE Clindamycin Phosphate (klin'' da mye' sin fos' fate) and Benzoyl Peroxide (BEN-zoe-il per-OX-ide) Gel, 1.2%/3.75%
The Patient Information and Instructions for Use have been approved by the U.S. Food and Drug Administration.
Revised: January 2023
Important Information: Clindamycin phosphate and benzoyl peroxide gel is for use on skin only (topical use). Clindamycin phosphate and benzoyl peroxide gel is not for use in your mouth, eyes or vagina.
Read this Instructions for Use before you start using clindamycin phosphate and benzoyl peroxide gel and each time you get a refill. There may be new information. This information does not take the place of talking with your doctor about your medical condition or treatment.
  • Apply clindamycin phosphate and benzoyl peroxide gel to your face 1 time each day as prescribed.
  • Before you apply clindamycin phosphate and benzoyl peroxide gel, wash your face gently with a mild soap, rinse with warm water, and pat your skin dry.
  • To apply clindamycin phosphate and benzoyl peroxide gel to your face, use the pump to dispense one pea-sized amount of clindamycin phosphate and benzoyl peroxide gel onto your fingertip. See Figure 1.
  • One pea-sized amount of clindamycin phosphate and benzoyl peroxide gel should be enough to cover your entire face.
  • Figure 1
  • Dot the one pea-sized amount of clindamycin phosphate and benzoyl peroxide gel onto six areas of your face (chin, left cheek, right cheek, nose, left forehead, right forehead). See Figure 2.
  • Figure 2

  • Spread the gel over your face and gently rub it in. It is important to spread the gel over your entire face. If your doctor tells you to put clindamycin phosphate and benzoyl peroxide gel on other areas of your skin with acne, be sure to ask how much you should use.
  • Wash your hands with soap and water after applying clindamycin phosphate and benzoyl peroxide gel.
  • How should I store Clindamycin Phosphate and Benzoyl Peroxide Gel?
  • Store clindamycin phosphate and benzoyl peroxide gel at room temperature at or below 77°F (25°C).
  • Do not freeze clindamycin phosphate and benzoyl peroxide gel.
  • Throw away (discard) clindamycin phosphate and benzoyl peroxide gel that has passed the expiration date.
  • Store pump upright.
  • Keep the container tightly closed
  • Keep clindamycin phosphate and benzoyl peroxide gel and all medicines out of the reach of children.

    Spl Patient Package Insert Table

    PATIENT INFORMATION Clindamycin Phosphate (klin'' da mye' sin fos' fate) and Benzoyl Peroxide (BEN-zoe-il per-OX-ide) Gel, 1.2%/3.75%
    This Patient Information has been approved by the U.S. Food and Drug Administration.
    Revised: January 2023
    Important information: Clindamycin phosphate and benzoyl peroxide gel is for use on skin only (topical use). Do not use clindamycin phosphate and benzoyl peroxide gel in your mouth, eyes, or vagina.
    What is Clindamycin Phosphate and Benzoyl Peroxide Gel?
    Clindamycin phosphate and benzoyl peroxide gel is a prescription medicine used on the skin (topical) to treat acne vulgaris in people 12 years of age and older.
    It is not known if clindamycin phosphate and benzoyl peroxide gel is safe and effective for use longer than 12 weeks.
    It is not known if clindamycin phosphate and benzoyl peroxide gel is safe and effective in children under 12 years of age.
    Do not use Clindamycin Phosphate and Benzoyl Peroxide Gel if you have:
  • had an allergic reaction to clindamycin, benzoyl peroxide, lincomycin, or any of the ingredients in clindamycin phosphate and benzoyl peroxide gel. See the end of this leaflet for a complete list of ingredients in clindamycin phosphate and benzoyl peroxide gel.
  • Crohn's disease or ulcerative colitis.
  • had inflammation of the colon (colitis) or severe diarrhea with past antibiotic use.
  • Talk with your doctor if you are not sure if you have any of the conditions listed above.
    Before using Clindamycin Phosphate and Benzoyl Peroxide Gel, tell your doctor about all of your medical conditions, including if you:
  • plan to have surgery. Clindamycin phosphate and benzoyl peroxide gel may affect how certain medicines work that may be given during surgery.
  • are pregnant or plan to become pregnant. It is not known if clindamycin phosphate and benzoyl peroxide gel will harm your unborn baby.
  • are breastfeeding or plan to breastfeed. It is not known if clindamycin phosphate and benzoyl peroxide passes into your breast milk. Clindamycin when taken by mouth or by injection has been reported to appear in breast milk. Talk to your doctor about the best way to feed your baby during treatment with clindamycin phosphate and benzoyl peroxide gel.
  • Tell your doctor about all the medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements. Clindamycin phosphate and benzoyl peroxide gel may affect the way other medicines work and other medicines may affect how clindamycin phosphate and benzoyl peroxide gel works.
  • Especially tell your doctor if you take medicine by mouth that contains erythromycin or use products on your skin that contain erythromycin. Clindamycin phosphate and benzoyl peroxide gel should not be used with products that contain erythromycin.
  • Tell your doctor about any skin products you use. Other skin and topical acne products may increase the irritation of your skin when used with clindamycin phosphate and benzoyl peroxide gel. Know the medicines you take. Keep a list of them and show it to your doctor and pharmacist when you get a new medicine.
  • How should I use Clindamycin Phosphate and Benzoyl Peroxide Gel?
  • Use clindamycin phosphate and benzoyl peroxide gel exactly as your doctor tells you to use it. See the detailed "Instructions for Use" for directions about how to apply clindamycin phosphate and benzoyl peroxide gel.
  • Your doctor will tell you how long to use clindamycin phosphate and benzoyl peroxide gel.
  • Apply clindamycin phosphate and benzoyl peroxide gel to your face 1 time each day. Before you apply clindamycin phosphate and benzoyl peroxide gel, wash your face gently with a mild soap, rinse with warm water, and pat your skin dry.
  • What should I avoid while using Clindamycin Phosphate and Benzoyl Peroxide Gel?
  • Limit your time in sunlight. You should avoid using tanning beds or sun lamps during treatment with clindamycin phosphate and benzoyl peroxide gel. If you have to be in sunlight, wear a wide-brimmed hat or other protective clothing, and use sunscreen to cover the treated areas.
  • Avoid getting clindamycin phosphate and benzoyl peroxide gel in your hair or on colored fabric. Clindamycin phosphate and benzoyl peroxide gel may bleach hair or colored fabric.
  • What are possible side effects of Clindamycin Phosphate and Benzoyl Peroxide Gel? Clindamycin phosphate and benzoyl peroxide gel can cause serious side effects including:
  • Inflammation of the colon (colitis). Stop using clindamycin phosphate and benzoyl peroxide gel and call your doctor right away if you have severe stomach (abdominal) cramps watery diarrhea, or bloody diarrhea during treatment, and within several weeks after treatment with clindamycin phosphate and benzoyl peroxide gel.
  • Allergic reactions. Stop using clindamycin phosphate and benzoyl peroxide gel, call your doctor and get help right away if you have any of the following symptoms during treatment with clindamycin phosphate and benzoyl peroxide gel:
  • severe itching
  • swelling of your face, eyes, lips, tongue or throat
  • trouble breathing
  • The most common side effects of clindamycin phosphate and benzoyl peroxide gel include burning sensation, skin redness or swelling, itching and rash. Stop using clindamycin phosphate and benzoyl peroxide gel and call your doctor if you have a skin rash or your skin becomes very red, itchy or swollen. Talk to your doctor about any side effect that bothers you or that does not go away.
    These are not all of the possible side effects with clindamycin phosphate and benzoyl peroxide gel.
    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 Clindamycin Phosphate and Benzoyl Peroxide Gel?
  • Store clindamycin phosphate and benzoyl peroxide gel at room temperature at or below 77°F (25°C).
  • Do not freeze clindamycin phosphate and benzoyl peroxide gel.
  • Throw away (discard) clindamycin phosphate and benzoyl peroxide gel that has passed the expiration date.
  • Store pump upright.
  • Keep the container tightly closed.
  • Keep clindamycin phosphate and benzoyl peroxide gel and all medicines out of the reach of children.
    General information about the safe and effective use of Clindamycin Phosphate and Benzoyl Peroxide Gel.
    Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use clindamycin phosphate and benzoyl peroxide gel for a condition for which it was not prescribed. Do not give clindamycin phosphate and benzoyl peroxide gel to other people, even if they have the same condition you have. It may harm them. You can also ask your doctor or pharmacist for information about clindamycin phosphate and benzoyl peroxide gel that is written for healthcare professionals.
    What are the ingredients in Clindamycin Phosphate and Benzoyl Peroxide Gel?
    Active ingredients: clindamycin phosphate and benzoyl peroxide
    Inactive ingredients: carbomer homopolymer type C, poloxamer 124, potassium hydroxide, propylene glycol, and purified water.
    Manufactured by: Taro Pharmaceuticals Inc., Brampton, Ontario, Canada L6T 1C1
    Distributed by: Taro Pharmaceuticals U.S.A., Inc., Hawthorne, NY 10532
    For more information about clindamycin phosphate and benzoyl peroxide gel, call 1-866-923-4914 or visit www.taro.com.

    Clinical Studies

    14 CLINICAL STUDIES The safety and efficacy of once-daily use of clindamycin phosphate and benzoyl peroxide gel was assessed in a 12-week multi-center, randomized, blinded trial in subjects 12 years and older with moderate to severe acne vulgaris. This trial evaluated clindamycin phosphate and benzoyl peroxide gel compared to vehicle gel. The co-primary efficacy variables for this trial were: (1) Mean absolute change from baseline at Week 12 in: Inflammatory lesion counts Non-inflammatory lesion counts (2) Percent of subjects who had a 2-grade reduction from baseline on an Evaluator's Global Severity (EGS) score. The EGS scoring scale used in the clinical trial for clindamycin phosphate and benzoyl peroxide gel is as follows: Table 2: EGS Scoring Scale Grade Description Clear Normal, clear skin with no evidence of acne Almost Clear Rare non-inflammatory lesions present, with rare non-inflamed papules (papules must be resolving and may be hyperpigmented, though not pink-red) Mild Some non-inflammatory lesions are present, with few inflammatory lesions (papules/pustules only; no nodulocystic lesions) Moderate Non-inflammatory lesions predominate, with multiple inflammatory lesions evident: several to many comedones and papules/pustules, and there may or may not be one small nodulocystic lesion Severe Inflammatory lesions are more apparent, many comedones and papules/pustules, there may or may not be up to 2 nodulocystic lesions Very Severe Highly inflammatory lesions predominate, variable number of comedones, many papules/pustules and more than 2 nodulocystic lesions The results of the trial at Week 12 are presented in Table 3: Table 3: Results of Phase 3 Trial at Week 12 Clindamycin Phosphate and Benzoyl Peroxide Gel N = 253 Vehicle Gel N = 245 EGSS: Clear or Almost Clear 29% 15% 2-grade reduction from baseline 35% 17% Inflammatory Lesions: Mean absolute reduction 16.3 8.2 Mean percent (%) reduction 60.4% 31.3% Non-Inflammatory Lesions: Mean absolute reduction 19.2 9.6 Mean percent (%) reduction 51.8% 27.6%

    Clinical Studies Table

    Table 2: EGS Scoring Scale
    GradeDescription
    ClearNormal, clear skin with no evidence of acne
    Almost ClearRare non-inflammatory lesions present, with rare non-inflamed papules (papules must be resolving and may be hyperpigmented, though not pink-red)
    MildSome non-inflammatory lesions are present, with few inflammatory lesions (papules/pustules only; no nodulocystic lesions)
    ModerateNon-inflammatory lesions predominate, with multiple inflammatory lesions evident: several to many comedones and papules/pustules, and there may or may not be one small nodulocystic lesion
    SevereInflammatory lesions are more apparent, many comedones and papules/pustules, there may or may not be up to 2 nodulocystic lesions
    Very SevereHighly inflammatory lesions predominate, variable number of comedones, many papules/pustules and more than 2 nodulocystic lesions

    Geriatric Use

    8.5 Geriatric Use Clinical trials of clindamycin phosphate and benzoyl peroxide gel did not include sufficient numbers of subjects age 65 years and older to determine whether they respond differently from younger subjects.

    Pediatric Use

    8.4 Pediatric Use Safety and effectiveness of clindamycin phosphate and benzoyl peroxide gel in pediatric patients under the age of 12 years have not been evaluated.

    Pregnancy

    8.1 Pregnancy Risk Summary There are no available data on clindamycin phosphate and benzoyl peroxide gel use in pregnant women to evaluate a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. The limited published data on use of clindamycin in pregnant women with exposure during the first trimester are insufficient to inform a drug-associated risk of pregnancy-related adverse outcomes (see Data ). In limited published clinical trials with pregnant women, the systemic administration of clindamycin during the second and third trimesters has not been associated with an increased frequency of major birth defects. In animal reproduction studies, clindamycin did not cause malformations or embryo-fetal development toxicity in pregnant rats and mice when administered during the period of organogenesis at systemic doses up to 240 times the maximum recommended human dose (MRHD) of 2.5 g clindamycin phosphate and benzoyl peroxide gel, based on body surface area (BSA) comparisons (see Data ) . The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of major birth defects, loss, and other adverse outcomes. 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. Data Human Data In limited published trials in pregnant women administered clindamycin during the first trimester of pregnancy, there was no difference in the rate of major birth defects reported among in utero exposed infants compared to unexposed infants. These data cannot definitely establish or exclude any clindamycin-associated risk during pregnancy. Animal Data Animal reproductive/developmental toxicity studies have not been conducted with clindamycin phosphate and benzoyl peroxide gel or benzoyl peroxide. Developmental toxicity studies of clindamycin performed in pregnant rats and mice administered during the period of organogenesis at oral doses of up to 600 mg/kg/day (240 and 120 times the MRHD for clindamycin, respectively, based on BSA comparisons) or subcutaneous doses of up to 200 mg/kg/day (80 and 40 times the MRHD for clindamycin, respectively, based on BSA comparisons) revealed no malformations or embryo-fetal development toxicity.

    Use In Specific Populations

    8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary There are no available data on clindamycin phosphate and benzoyl peroxide gel use in pregnant women to evaluate a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes. The limited published data on use of clindamycin in pregnant women with exposure during the first trimester are insufficient to inform a drug-associated risk of pregnancy-related adverse outcomes (see Data ). In limited published clinical trials with pregnant women, the systemic administration of clindamycin during the second and third trimesters has not been associated with an increased frequency of major birth defects. In animal reproduction studies, clindamycin did not cause malformations or embryo-fetal development toxicity in pregnant rats and mice when administered during the period of organogenesis at systemic doses up to 240 times the maximum recommended human dose (MRHD) of 2.5 g clindamycin phosphate and benzoyl peroxide gel, based on body surface area (BSA) comparisons (see Data ) . The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of major birth defects, loss, and other adverse outcomes. 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. Data Human Data In limited published trials in pregnant women administered clindamycin during the first trimester of pregnancy, there was no difference in the rate of major birth defects reported among in utero exposed infants compared to unexposed infants. These data cannot definitely establish or exclude any clindamycin-associated risk during pregnancy. Animal Data Animal reproductive/developmental toxicity studies have not been conducted with clindamycin phosphate and benzoyl peroxide gel or benzoyl peroxide. Developmental toxicity studies of clindamycin performed in pregnant rats and mice administered during the period of organogenesis at oral doses of up to 600 mg/kg/day (240 and 120 times the MRHD for clindamycin, respectively, based on BSA comparisons) or subcutaneous doses of up to 200 mg/kg/day (80 and 40 times the MRHD for clindamycin, respectively, based on BSA comparisons) revealed no malformations or embryo-fetal development toxicity. 8.2 Lactation Risk Summary There are no data on the presence of clindamycin or benzoyl peroxide in human milk, the effects on the breastfed child, or the effects on milk production following topical administration. However, clindamycin has been reported to be present in breast milk in small amounts following oral and parenteral administration. The developmental and health benefits of breastfeeding should be considered along with the mother's clinical need for clindamycin phosphate and benzoyl peroxide gel and any potential adverse effects on the breastfed child from clindamycin phosphate and benzoyl peroxide gel or from the underlying maternal condition. Clinical Considerations If used during lactation and clindamycin phosphate and benzoyl peroxide gel is applied to the chest, care should be taken to avoid accidental ingestion by the infant. 8.4 Pediatric Use Safety and effectiveness of clindamycin phosphate and benzoyl peroxide gel in pediatric patients under the age of 12 years have not been evaluated. 8.5 Geriatric Use Clinical trials of clindamycin phosphate and benzoyl peroxide gel did not include sufficient numbers of subjects age 65 years and older to determine whether they respond differently from younger subjects.

    How Supplied

    16 HOW SUPPLIED/STORAGE AND HANDLING 16.1 How Supplied Clindamycin Phosphate and Benzoyl Peroxide Gel 1.2%/3.75% is a white to off-white smooth gel supplied as a 50 g pump (NDC 51672-1403-4) 16.2 Dispensing Instructions for the Pharmacist Dispense clindamycin phosphate and benzoyl peroxide gel with a 10-week expiration date. Specify " Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Do not freeze." 16.3 Storage and Handling PHARMACIST: Prior to Dispensing: Store in a refrigerator, 2°C to 8°C (36°F to 46°F). PATIENT: Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Protect from freezing. Store pump upright. Keep out of the reach of children Keep container tightly closed.

    Storage And Handling

    16.3 Storage and Handling PHARMACIST: Prior to Dispensing: Store in a refrigerator, 2°C to 8°C (36°F to 46°F). PATIENT: Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature]. Protect from freezing. Store pump upright. Keep out of the reach of children Keep container tightly closed.

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