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Author: Admin | 2025-04-28
IMPRINT: H 39 SHAPE: round COLOR: orange All Imprints hydralazine hydrochloride 50 mg - h 40 round orange hydralazine hydrochloride 25 mg - h 39 round orange hydralazine hydrochloride 100 mg oral tablet - h 41 round orange hydralazine hydrochloride tablet - h 39 round orange hydralazine 25 mg - 39 h round orange hydralazine hydrochloride tablet - h 40 round orange hydralazine hydrochloride 10 mg - h 38 round orange hydralazine hydrochloride 100 mg - h 41 round orange FDA Adverse Reactions Go PRO for all pill images Description HydrALAZINE hydrochloride, USP, is an antihypertensive, for oral administration. Its chemical name is 1 -hydrazinophthalazine monohydrochloride, and its structural formula is: C8H8N4.HCl HydrALAZINE hydrochloride, USP is a white to off-white, odorless crystalline powder. It is soluble in water, slightly soluble in alcohol, and very slightly soluble in ether. It melts at about 275oC, with decomposition, and has a molecular weight of 196.64. Each tablet for oral administration contains 10 mg, 25 mg, 50 mg or 100 mg hydrALAZINE hydrochloride, USP. Tablets also contain anhydrous lactose, microcrystalline cellulose, sodium starch glycolate, stearic acid and FD&C Yellow # 6. Clinical Pharmacology Although the precise mechanism of action of hydrALAZINE is not fully understood, the major effects are on the cardiovascular system. HydrALAZINE apparently lowers blood pressure by exerting a peripheral vasodilating effect through a direct relaxation of vascular smooth muscle. HydrALAZINE, by altering cellular calcium metabolism, interferes with the calcium movements within the vascular smooth muscle that are responsible for initiating or
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