Land: USA
Sprog: engelsk
Kilde: NLM (National Library of Medicine)
NIFEDIPINE (UNII: I9ZF7L6G2L) (NIFEDIPINE - UNII:I9ZF7L6G2L)
State of Florida DOH Central Pharmacy
NIFEDIPINE
NIFEDIPINE 30 mg
ORAL
PRESCRIPTION DRUG
Nifedipine extended-release tablets is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents. Known hypersensitivity to nifedipine.
Nifedipine extended-release tablets are supplied as 30 mg and 60 mg round, biconvex, film-coated tablets which are 11 mm in diameter and 6 mm in height. They are supplied by State of Florida DOH Central Pharmacy as follows: The tablets should be protected from light and moisture and stored at 20° - 25°C (68° - 77°F) [See USP Controlled Room Temperature]. Dispense in tight, light--resistant containers. Manufactured by: Eurand, Inc. Vandalia, OH 45377 Distributed by: Actavis South Atlantic LLC Sunrise, FL 33325 This Product was Repackaged By: State of Florida DOH Central Pharmacy 104-2 Hamilton Park Drive Tallahassee, FL 32304 United States RX Only
Abbreviated New Drug Application
NIFEDIPINE - NIFEDIPINE TABLET, EXTENDED RELEASE STATE OF FLORIDA DOH CENTRAL PHARMACY ---------- NIFEDIPINE EXTENDED-RELEASE TABLETS FOR ORAL USE DESCRIPTION Nifedipine extended-release tablets are an extended release tablet dosage form of the calcium channel blocker nifedipine. Nifedipine is 3,5-pyridinedicarboxylic acid, 1,4-dihydro-2,6-dimethyl-4-(2- nitrophenyl)-dimethyl ester, C H N O , and has the structural formula: Nifedipine is a yellow crystalline substance, practically insoluble in water but soluble in ethanol. It has a molecular weight of 346.3. Nifedipine extended-release tablets contain either 30 or 60 mg of nifedipine for once-a-day oral administration. Inert ingredients in the formulation are: colloidial silicon dioxide, hypromellose, lactose monohydrate, magnesium stearate. The inert ingredients in the film coating are: hypromellose, polydextrose, polyethylene glycol, triacetin, yellow iron oxide, and titanium dioxide. Dissolution test is pending. CLINICAL PHARMACOLOGY Nifedipine is a calcium ion influx inhibitor (slow-channel blocker or calcium ion antagonist) which inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle. The contractile processes of vascular smooth muscle and cardiac muscle are dependent upon the movement of extracellular calcium ions into these cells through specific ion channels. Nifedipine selectively inhibits calcium ion influx across the cell membrane of vascular smooth muscle and cardiac muscle without altering serum calcium concentrations. MECHANISM OF ACTION: The mechanism by which nifedipine reduces arterial blood pressure involves peripheral arterial vasodilatation and, consequently, a reduction in peripheral vascular resistance. The increased peripheral vascular resistance that is an underlying cause of hypertension results from an increase in active tension in the vascular smooth muscle. Studies have demonstrated that the increase in active tension reflects an increase in cytosolic free calcium. Nifedipine is a peripheral ar Læs hele dokumentet