SPL Set ID: 61b1230e-c0dc-46c6-a577-7d5dd2515eb7

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 crystalline powder which is moderately soluble in water. Quetiapine tablets USP, are supplied for oral administration as 25 mg (round, pink), 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 dibasic calcium phosphate dihydrate, fumaric acid, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol-part hydrolyzed, povidone, sodium starch glycolate, talc, titanium dioxide. The 25 mg tablets contain iron oxide red and lecithin (soya). The 50 mg, 200 mg and 300 mg tablets contain lecithin (soya). The 100 mg and 400 mg tablets contain D&C yellow #10 aluminum lake and iron oxide red. Each 25 mg tablet contains 28.8 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.62 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.25 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.50 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.75 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 461.00 mg of quetiapine fumarate equivalent to 400 mg quetiapine. 17db564c-figure-01