SPL Set ID: e8988924-c18c-4e91-ab79-2d84e72bfa0d

Abacavir and Lamivudine Tablets, USP Abacavir and Lamivudine tablets, USP contain the following 2 synthetic nucleoside analogues: abacavir sulfate USP (ZIAGEN, also a component of TRIZIVIR) and lamivudine USP (also known as EPIVIR or 3TC) with inhibitory activity against HIV-1. Abacavir and Lamivudine tablets, USP are for oral administration. Each orange, film-coated tablet contains 600 mg of abacavir as abacavir sulfate USP and 300 mg of lamivudine USP. The inactive ingredients are colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose and sodium starch glycolate. The tablets are coated with opadry orange which contains FD & C Yellow #6/Sunset Yellow FCF Aluminum lake, hypromellose, polyethylene glycol, polysorbate 80 and titanium dioxide. Abacavir sulfate The chemical name of abacavir sulfate is ( 1S, 4R )-4-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol sulfate salt (2:1). Abacavir sulfate is the enantiomer with 1S, 4R absolute configuration on the cyclopentene ring. It has a molecular formula of (C 14 H 18 N 6 O)2•H 2 SO 4 and a molecular weight of 670.74. It has the following structural formula: Abacavir sulfate USP is a white to off-white powder which is soluble in water and slightly soluble in methanol. In vivo, abacavir sulfate dissociates to its free base, abacavir. Dosages are expressed in terms of abacavir. Lamivudine The chemical name of lamivudine is 2(1H)-Pyrimidinone,4-amino-1-[2-(hydroxymethyl)-1,3-oxathio-lan-5-yl],(2R-cis). Lamivudine has also been referred to as (-)-2’-deoxy-3’-thiacytidine. It has a molecular formula of C 8 H 11 N 3 O 3 S and a molecular weight of 229.26. It has the following structural formula: Lamivudine USP is a white to off white solid which is soluble in water, sparingly soluble in methanol and slightly soluble in ethanol. abacavirstructure lamivudinestructure