quetiapine fumarate - Medications

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), 150 mg (round, light 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, 150 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 150 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 150 mg tablet contains 172.683 mg of quetiapine fumarate USP equivalent to 150 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.

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Molecular Structure

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 21 H 25 N 3 O 2 S) 2 . C 4 H 4 O 4 and it has a molecular weight of 883.1 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white crystalline powder which is sparingly soluble in 0.1N hydrochloric acid, slightly soluble in water, in anhydrous ethanol and in methanol. Quetiapine tablets USP are 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 dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. quetiapinetabsstructure

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablets, USP is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.70 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate equivalent to 400 mg quetiapine. The USP dissolution test is pending. Structure

Quetiapine fumarate is a psychotropic agent 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 Tablets USP are available for oral administration containing either 25 mg, 50 mg, 100 mg, 200 mg, 300 mg or 400 mg of quetiapine fumarate. Each 25 mg tablet contains the following inactive ingredients: lactose, magnesium stearate, microcrystalline cellulose, povidone, purified water and sodium starch glycolate. The 50 mg, 100 mg, 200 mg, 300 mg and 400 mg tablets contain the following inactive ingredients: colloidal silicon dioxide, magnesium stearate, microcrystalline cellulose, povidone, purified water and sodium starch glycolate. Each tablet meets the requirements of the Test 3 Dissolution in the USP monograph for Quetiapine Tablets USP. chem.jpg

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine Extended-release tablets, USP are supplied for oral administration as 150 mg (white), 200 mg (yellow), 300 mg (light yellow), and 400 mg (white). All tablets are round shaped and film coated. Inactive ingredients for quetiapine extended-release tablets, USP are lactose monohydrate, sodium chloride, hydroxypropyl methylcellulose, povidone K30, talc and magnesium stearate. The film coating for all quetiapine extended-release tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, iron oxide yellow (200 and 300 mg tablets) is included in the film coating of specific strengths. Each 150 mg tablet contains 173 mg of quetiapine fumarate, USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230 mg of quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345 mg of quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 461 mg of quetiapine fumarate, USP equivalent to 400 mg quetiapine. Quetiapine Extended-release tablets, USP meet USP Dissolution Test 2. structural formula

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), 150 mg (round, light 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, 150 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 150 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 150 mg tablet contains 172.683 mg of quetiapine fumarate USP equivalent to 150 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

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Molecular Structure

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

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablets, USP is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine.Each 150 mg tablet contains 172.70 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Structure

Quetiapine fumarate, USP 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, 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 lactose, microcrystalline cellulose, sodium starch glycolate, corn starch, dibasic calcium phosphate dihydrate, talc, magnesium stearate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide yellow and the 100 mg and 400 mg tablets contain only iron oxide yellow. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.39 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.53 mg of quetiapine fumarate equivalent to 400 mg quetiapine. Molecular Structure

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Molecular Structure

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Molecular Structure

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablets, USP is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.70 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate equivalent to 400 mg quetiapine. The USP dissolution test is pending. Structure

Quetiapine fumarate is a psychotropic agent 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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablets, USP is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. The USP dissolution test is pending. Structure

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 is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.70 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Structure

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), 150 mg (round, light 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, 150 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 150 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 150 mg tablet contains 172.683 mg of quetiapine fumarate USP equivalent to 150 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.

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablet, USP is supplied for oral administration as 25 mg (round, pink), 50 mg (round, white to off white), 100 mg (round, yellow), 200 mg (round, white to off white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic calcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide yellow and the 100 mg and 400 mg tablets contain only iron oxide yellow. Each 25 mg tablet contains quetiapine fumarate, USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains quetiapine fumarate, USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains quetiapine fumarate, USP equivalent to 100 mg quetiapine. Each 200 mg tablet contains quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains quetiapine fumarate, USP equivalent to 400 mg quetiapine.

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 883.10 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white powder which is insoluble in water. Quetiapine tablets USP are 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 microcrystalline cellulose, colloidal silicon dioxide, silicon dioxide, crospovidone, anhydrous citric acid, polysorbate 80, magnesium stearate, lactose monohydrate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain red ferric oxide and yellow ferric oxide and the 100 mg and 400 mg tablets contain only yellow ferric oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.12 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.24 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.36 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.48 mg of quetiapine fumarate equivalent to 400 mg quetiapine. quetiapine-structure

Quetiapine fumarate 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 Extended-release tablets, USP 50 mg are supplied for oral administration as 50 mg (peach, capsule shaped and film coated). Inactive ingredients for quetiapine extended-release tablets, USP 50 mg are hydroxypropyl methylcellulose, lactose monohydrate, magnesium stearate, povidone K30, silicified microcrystalline cellulose, sodium chloride and talc. The film coating contains polyethylene glycol, red iron oxide, yellow iron oxide, talc and titanium dioxide. Each 50 mg tablet contains 58 mg of quetiapine fumarate, USP equivalent to 50 mg quetiapine. Quetiapine Extended-release tablets, USP 50 mg meet USP Dissolution Test 5. structural formula

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 is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.70 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Structure

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 883.10 (fumarate salt). The structural formula is: Quetiapine fumarate USP is a white to off-white powder which is insoluble in water. Quetiapine tablets USP are 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 microcrystalline cellulose, colloidal silicon dioxide, silicon dioxide, crospovidone, anhydrous citric acid, polysorbate 80, magnesium stearate, lactose monohydrate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain red ferric oxide and yellow ferric oxide and the 100 mg and 400 mg tablets contain only yellow ferric oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.12 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.24 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.36 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.48 mg of quetiapine fumarate equivalent to 400 mg quetiapine.

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 is supplied for oral administration as 25 mg (round peach), 50 mg (round, white), 100 mg (round yellow), 150 mg (round, off white to light yellow), 200 mg (round, white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol and titanium dioxide. The 25 mg tablets contain red iron oxide and yellow iron oxide and the 100 mg, 150 mg and 400 mg tablets contain only yellow iron oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 150 mg tablet contains 172.70 mg of quetiapine fumarate USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.27 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.40 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.54 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine.

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets and 200 mg (quetiapine) round, white tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Molecular Structure

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine. Molecular Structure

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), 150 mg (round, light 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, 150 mg, and 400 mg contains iron oxide yellow. The 50 mg, 100 mg, 150 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 150 mg tablet contains 172.683 mg of quetiapine fumarate USP equivalent to 150 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

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 is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine tablet, USP is supplied for oral administration as 25 mg (round, pink), 50 mg (round, white to off white), 100 mg (round, yellow), 200 mg (round, white to off white), 300 mg (capsule-shaped, white), and 400 mg (capsule-shaped, yellow) tablets. Inactive ingredients are povidone, dibasic calcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide yellow and the 100 mg and 400 mg tablets contain only iron oxide yellow. Each 25 mg tablet contains quetiapine fumarate, USP equivalent to 25 mg quetiapine. Each 50 mg tablet contains quetiapine fumarate, USP equivalent to 50 mg quetiapine. Each 100 mg tablet contains quetiapine fumarate, USP equivalent to 100 mg quetiapine. Each 200 mg tablet contains quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains quetiapine fumarate, USP equivalent to 400 mg quetiapine.

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 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 (quetiapine) round, pink tablets, 50 mg (quetiapine) round, white tablets, 100 mg (quetiapine) round, yellow tablets, 200 mg (quetiapine) round, white tablets, 300 mg (quetiapine) capsule-shaped, white tablets and 400 mg (quetiapine) capsule-shaped, yellow tablets. Inactive ingredients are dibasic calcium phosphate dihydrate, hypromellose, lactose monohydrate, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, sodium starch glycolate and titanium dioxide. The 25 mg tablets contain iron oxide red and iron oxide black; and the 100 mg and 400 mg tablets contain iron oxide yellow. Each 25 mg film-coated tablet contains 28.78 mg of quetiapine fumarate USP equivalent to 25 mg quetiapine. Each 50 mg film-coated tablet contains 57.56 mg of quetiapine fumarate USP equivalent to 50 mg quetiapine. Each 100 mg film-coated tablet contains 115.12 mg of quetiapine fumarate USP equivalent to 100 mg quetiapine. Each 200 mg film-coated tablet contains 230.24 mg of quetiapine fumarate USP equivalent to 200 mg quetiapine. Each 300 mg film-coated tablet contains 345.36 mg of quetiapine fumarate USP equivalent to 300 mg quetiapine. Each 400 mg film-coated tablet contains 460.48 mg of quetiapine fumarate USP equivalent to 400 mg quetiapine.

Quetiapine USP 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 C42H50N6O4S2•C4H4O4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [quetiapine-fig-1] Quetiapine fumarate is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine extended-release tablets, USP are supplied for oral administration as 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for quetiapine extended-release tablets are lactose monohydrate, microcrystalline cellulose, sodium citrate dihydrate, ethylcellulose, povidone, isopropyl alcohol and magnesium stearate. The film coating for all quetiapine extended-release tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (200 and 300 mg tablets) are included in the film coating of specific strengths. Each 150 mg tablet contains 172.69 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.50 mg of quetiapine fumarate equivalent to 400 mg quetiapine. USP dissolution test is pending.

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 42H 50N 6O 4S 2•C 4H 4O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [structural formula] Quetiapine fumarate is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine Extended-release tablets, USP are supplied for oral administration as 150 mg (white), 200 mg (yellow), 300 mg (light yellow), and 400 mg (white). All tablets are round shaped and film coated. Inactive ingredients for quetiapine extended-release tablets, USP are lactose monohydrate, sodium chloride, hydroxypropyl methylcellulose, povidone K30, talc and magnesium stearate. The film coating for all quetiapine extended-release tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, iron oxide yellow (200 and 300 mg tablets) is included in the film coating of specific strengths. Each 150 mg tablet contains 173 mg of quetiapine fumarate, USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230 mg of quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345 mg of quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 461 mg of quetiapine fumarate, USP equivalent to 400 mg quetiapine. Quetiapine Extended-release tablets, USP meet USP Dissolution Test 2.

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 42H 50N 6O 4S 2•C 4H 4O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [structural formula] Quetiapine fumarate is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine Extended-release tablets, USP are supplied for oral administration as 150 mg (white), 200 mg (yellow), 300 mg (light yellow), and 400 mg (white). All tablets are round shaped and film coated. Inactive ingredients for quetiapine extended-release tablets, USP are lactose monohydrate, sodium chloride, hydroxypropyl methylcellulose, povidone K30, talc and magnesium stearate. The film coating for all quetiapine extended-release tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, iron oxide yellow (200 and 300 mg tablets) is included in the film coating of specific strengths. Each 150 mg tablet contains 173 mg of quetiapine fumarate, USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230 mg of quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345 mg of quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 461 mg of quetiapine fumarate, USP equivalent to 400 mg quetiapine. Quetiapine Extended-release tablets, USP meet USP Dissolution Test 2.

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 42H 50N 6O 4S 2•C 4H 4O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [structural formula] Quetiapine fumarate is a white to off-white crystalline powder which is moderately soluble in water. Quetiapine Extended-release tablets, USP are supplied for oral administration as 150 mg (white), 200 mg (yellow), 300 mg (light yellow), and 400 mg (white). All tablets are round shaped and film coated. Inactive ingredients for quetiapine extended-release tablets, USP are lactose monohydrate, sodium chloride, hydroxypropyl methylcellulose, povidone K30, talc and magnesium stearate. The film coating for all quetiapine extended-release tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, iron oxide yellow (200 and 300 mg tablets) is included in the film coating of specific strengths. Each 150 mg tablet contains 173 mg of quetiapine fumarate, USP equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230 mg of quetiapine fumarate, USP equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345 mg of quetiapine fumarate, USP equivalent to 300 mg quetiapine. Each 400 mg tablet contains 461 mg of quetiapine fumarate, USP equivalent to 400 mg quetiapine. Quetiapine Extended-release tablets, USP meet USP Dissolution Test 2.

Quetiapine extended-release tablets are 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 42H 50N 6O 4S 2•C 4H 4O 4 and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [structural formula] Quetiapine fumarate, USP is a white to off-white crystalline powder which is soluble in 0.1N hydrochloric acid, slightly soluble in water, in alcohol, and in methanol. Quetiapine extended-release tablets,USP are supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for quetiapine extended-release tablets are lactose monohydrate, microcrystalline cellulose, sodium citrate dihydrate, hypromellose, and magnesium stearate. The film coating for all quetiapine extended-release tablets, USP contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (50 mg, 200 mg and 300 mg tablets) and red iron oxide (50 mg tablets) are included in the film coating of specific strengths. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.7 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.5 mg of quetiapine fumarate equivalent to 400 mg quetiapine.

Quetiapine extended-release tablets are 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 42H 50N 6O 4S 2•C 4H 4O 4and it has a molecular weight of 883.11 (fumarate salt). The structural formula is: [structural formula] Quetiapine fumarate, USP is a white to off-white crystalline powder which is soluble in 0.1N hydrochloric acid, slightly soluble in water, in alcohol, and in methanol. Quetiapine extended-release tablets,USP are supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for quetiapine extended-release tablets are lactose monohydrate, microcrystalline cellulose, sodium citrate dihydrate, hypromellose, and magnesium stearate. The film coating for all quetiapine extended-release tablets, USP contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (50 mg, 200 mg and 300 mg tablets) and red iron oxide (50 mg tablets) are included in the film coating of specific strengths. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.7 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.5 mg of quetiapine fumarate equivalent to 400 mg quetiapine. FDA approved dissolution test specifications differ from USP.

SEROQUEL ® (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 is a white to off-white crystalline powder which is moderately soluble in water. SEROQUEL 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 povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain red ferric oxide and yellow ferric oxide and the 100 mg and 400 mg tablets contain only yellow ferric oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.39 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.51 mg of quetiapine fumarate equivalent to 400 mg quetiapine. Chemical Structure

SEROQUEL ® (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 is a white to off-white crystalline powder which is moderately soluble in water. SEROQUEL 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 povidone, dibasic dicalcium phosphate dihydrate, microcrystalline cellulose, sodium starch glycolate, lactose monohydrate, magnesium stearate, hypromellose, polyethylene glycol, and titanium dioxide. The 25 mg tablets contain red ferric oxide and yellow ferric oxide and the 100 mg and 400 mg tablets contain only yellow ferric oxide. Each 25 mg tablet contains 28.78 mg of quetiapine fumarate equivalent to 25 mg quetiapine. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 100 mg tablet contains 115.13 mg of quetiapine fumarate equivalent to 100 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.39 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.51 mg of quetiapine fumarate equivalent to 400 mg quetiapine. Chemical Structure

SEROQUEL XR (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 is a white to off-white crystalline powder which is moderately soluble in water. SEROQUEL XR is supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for SEROQUEL XR are lactose monohydrate, microcrystalline cellulose, sodium citrate, hypromellose, and magnesium stearate. The film coating for all SEROQUEL XR tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (50, 200 and 300 mg tablets) and red iron oxide (50 mg tablets) are included in the film coating of specific strengths. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.69 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.50 mg of quetiapine fumarate equivalent to 400 mg quetiapine. structural formula

SEROQUEL XR (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 is a white to off-white crystalline powder which is moderately soluble in water. SEROQUEL XR is supplied for oral administration as 50 mg (peach), 150 mg (white), 200 mg (yellow), 300 mg (pale yellow), and 400 mg (white). All tablets are capsule shaped and film coated. Inactive ingredients for SEROQUEL XR are lactose monohydrate, microcrystalline cellulose, sodium citrate, hypromellose, and magnesium stearate. The film coating for all SEROQUEL XR tablets contain hypromellose, polyethylene glycol 400 and titanium dioxide. In addition, yellow iron oxide (50, 200 and 300 mg tablets) and red iron oxide (50 mg tablets) are included in the film coating of specific strengths. Each 50 mg tablet contains 57.56 mg of quetiapine fumarate equivalent to 50 mg quetiapine. Each 150 mg tablet contains 172.69 mg of quetiapine fumarate equivalent to 150 mg quetiapine. Each 200 mg tablet contains 230.26 mg of quetiapine fumarate equivalent to 200 mg quetiapine. Each 300 mg tablet contains 345.38 mg of quetiapine fumarate equivalent to 300 mg quetiapine. Each 400 mg tablet contains 460.50 mg of quetiapine fumarate equivalent to 400 mg quetiapine. structural formula