Vareniclinedrug info

Varenicline tablets contain varenicline (as the tartrate salt), which is a partial nicotinic agonist selective for α 4 β 2 nicotinic acetylcholine receptor subtypes. Varenicline, as the tartrate salt, is a powder which is a white to off-white to slightly yellow solid with the following chemical name: 7,8,9,10-tetrahydro-6,10-methano-6 H -pyrazino[2,3- h][3]benzazepine, (2 R,3 R )-2,3-dihydroxybutanedioate (1:1). It is freely soluble in water and very slightly soluble in methanol. Varenicline tartrate has a molecular weight of 361.35 Daltons, and a molecular formula of C 13 H 13 N 3

C 4 H 6 O 6. The chemical structure is: Varenicline tablets are supplied for oral administration in two strengths: 0.5 mg capsular, biconvex, white, film-coated tablet debossed with ‘VA’ on one side and ‘0.5’ on the other side and a 1 mg capsular, biconvex, light blue, film-coated tablet debossed with ‘VA’ on one side and ‘1’ on the other side. Each 0.5 mg varenicline tablet contains 0.85 mg of varenicline tartrate equivalent to 0.5 mg of varenicline free base; each 1 mg varenicline tablet contains 1.71 mg of varenicline tartrate equivalent to 1 mg of varenicline free base. The following inactive ingredients are included in the tablets: colloidal silicon dioxide, croscarmellose sodium, dibasic calcium phosphate anhydrous, hypromellose, magnesium stearate, microcrystalline cellulose, titanium dioxide. In addition 1 mg tablet contains FD&C Blue #2. Structure