Riik: Ameerika Ühendriigid
keel: inglise
Allikas: NLM (National Library of Medicine)
RANITIDINE HYDROCHLORIDE (UNII: BK76465IHM) (RANITIDINE - UNII:884KT10YB7)
St Marys Medical Park Pharmacy
RANITIDINE HYDROCHLORIDE
RANITIDINE 300 mg
PRESCRIPTION DRUG
Abbreviated New Drug Application
RANITIDINE- RANITIDINE TABLET ST MARYS MEDICAL PARK PHARMACY ---------- RANITIDINE TABLETS, USP RX ONLY DESCRIPTION The active ingredient in Ranitidine Tablets, USP 150 mg and Ranitidine Tablets, USP 300 mg is ranitidine hydrochloride (HCl), USP, a histamine H -receptor antagonist. Chemically it is N[2-[[[5- [(dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl]-N'-methyl-2-nitro-1,1-ethenediamine, HCl. It has the following structure: The empirical formula is C H N O S·HCl, representing a molecular weight of 350.87. Ranitidine HCl is a white to pale yellow, granular substance that is soluble in water. It has a slightly bitter taste and sulfurlike odor. Each Ranitidine Tablets, USP 150 mg for oral administration contains 167.4 mg of ranitidine HCl equivalent to 150 mg of ranitidine. Each tablet also contains the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, titanium dioxide, triethyl citrate and FD and C Yellow 6. Each Ranitidine Tablets, USP 300 mg for oral administration contains 334.8 mg of ranitidine HCl equivalent to 300 mg of ranitidine. Each tablet also contains the inactive ingredients colloidal silicon dioxide, croscarmellose sodium, hypromellose, magnesium stearate, microcrystalline cellulose, polydextrose, titanium dioxide, triethyl citrate and D andC Yellow 10. CLINICAL PHARMACOLOGY Ranitidine Tablets, USP is a competitive, reversible inhibitor of the action of histamine at the histamine H -receptors, including receptors on the gastric cells. Ranitidine Tablets, USP does not lower serum Ca in hypercalcemic states. Ranitidine Tablets, USP is not an anticholinergic agent. PHARMACOKINETICS: _ABSORPTION:_ Ranitidine Tablets, USP is 50% absorbed after oral administration, compared to an intravenous (IV) injection with mean peak levels of 440 to 545 ng/mL occurring 2 to 3 hours after a 150-mg dose. Absorption is not significantly impaired by the administration of food or antacids. Propantheline slightly delays Lugege kogu dokumenti