SPL Set ID: e6e25ef9-2671-489e-8eca-58bedb4f59ab

Quetiapine is an atypical antipsychotic belonging to a chemical class, the dibenzothiazepine derivatives. The chemical designation is 2-[2-(4-dibenzo [ b,f ] [1,4]thiazepin-11-yl-1-­piperazinyl)ethoxy]-ethanol fumarate (2:1) (salt). It is present in tablets as the fumarate salt. All doses and tablet strengths are expressed as milligrams of base, not as fumarate salt. Its molecular formula is C 42 H 50 N 6 O 4 S 2 •C 4 H 4 O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white powder which is moderately soluble in water. Quetiapine is supplied for oral administration as 25 mg (round, peach), 50 mg (round, white), 100 mg (round, yellow), 200 mg (round, white), 300 mg (capsule shaped, white), and 400 mg (capsule shaped, yellow) tablets. Inactive ingredients are colloidal silicon dioxide, dibasic calcium phosphate dihydrate, hypromellose 6cp, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol 400, povidone, sodium starch glycolate, talc, and titanium dioxide. In addition, the 25 mg contains iron oxide red and iron oxide yellow; the 100 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 200 mg, 300 mg, and 400 mg tablets are printed with Opacode S-1-17823 black contains iron oxide black and shellac. Each 25 mg tablet contains 28.780 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.561 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.122 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.244 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.366 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.488 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Chemical Structure