Hytrin

Orally administered Hytrin is indicated in adults for the treatment of mild to moderate hypertension. It may be used in combination with thiazide diuretics and/or other antihypertensive drugs or as sole therapy where other agents are inappropriate or ineffective. The hypotensive effect is most pronounced on the diastolic pressure. Although the exact mechanism of the hypotensive action of terazosin is not established, the relaxation of peripheral blood vessels appears to be produced mainly by competitive antagonism of post-synaptic alpha-1-adrenoceptors. Hytrin usually produces an initial gradual decrease in blood pressure followed by a sustained antihypertensive action.

Orally administered Hytrin is also indicated in adults as a therapy for the symptomatic treatment of urinary obstruction caused by benign prostatic hyperplasia (BPH). Terazosin is a selective post synaptic alpha-1-adrenoceptor blocker. Antagonism of alpha-1-receptors on prostatic and urethral smooth muscle has been shown to improve urinary tract flow and relieve the urinary obstruction caused by BPH.