Drugs Similar to ENTACAPONE

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol‑ O ‑methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol‑structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)‑2‑cyano‑3‑(3,4‑dihydroxy‑5‑nitrophenyl)‑N,N‑diethyl‑2‑ propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone USP is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablet are microcrystalline cellulose, sodium starch glycolate, hypromelloses, polyoxyl 40 hydrogenated castor oil, purified water, magnesium stearate, polyethylene glycols, ferric oxide red, ferric oxide yellow, titanium dioxide, polyvinyl alcohol and talc. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano‑-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol‑ O ‑methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol‑structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)‑2‑cyano‑3‑(3,4‑dihydroxy‑5‑nitrophenyl)‑N,N‑diethyl‑2‑ propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone USP is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablet are microcrystalline cellulose, sodium starch glycolate, hypromelloses, polyoxyl 40 hydrogenated castor oil, purified water, magnesium stearate, polyethylene glycols, ferric oxide red, ferric oxide yellow, titanium dioxide, polyvinyl alcohol and talc. structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano‑-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Carbidopa, levodopa and entacapone tablets is a combination of carbidopa, levodopa, and entacapone for the treatment of Parkinson’s disease. Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.3. It is designated chemically as (-)-L-(α-hydrazino-(α-methyl-β-(3,4dihydroxybenzene) propanoic acid monohydrate. Its empirical formula is C 10 H 14 N 2 O 4 •H 2 O, and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa, which has a molecular weight of 226.3. Levodopa, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid. Its empirical formula is C 9 H 11 NO 4 , and its structural formula is: Entacapone, a COMT inhibitor, is a nitro-catechol-structured compound with a molecular weight of 305.3. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: Carbidopa, levodopa and entacapone film coated tablets is supplied as tablets in 6 strengths: 12.5 mg of carbidopa, USP; 50 mg of levodopa, USP and 200 mg of entacapone USP 18.75 mg of carbidopa, USP; 75 mg of levodopa, USP and 200 mg of entacapone USP 25 mg of carbidopa, USP; 100 mg of levodopa, USP and 200 mg of entacapone USP 31.25 mg of carbidopa, USP; 125 mg of levodopa, USP and 200 mg of entacapone USP 37.5 mg of carbidopa, USP; 150 mg of levodopa, USP and 200 mg of entacapone USP 50 mg of carbidopa, USP; 200 mg of levodopa, USP and 200 mg of entacapone USP Inactive Ingredients: Colloidal silicon dioxide, Croscarmellose sodium, Crospovidone, Magnesium stearate, Maltodextrin, Microcrystalline cellulose, Povidone. The coating material Instacoat Brown HIS consists of Hypromellose, Polysorbate 80, Red Iron Oxide, Titanium Dioxide, Yellow Iron Oxide cle-str-carb.jpg cle-str-levo.jpg cle-str-enta.jpg

Carbidopa, levodopa and entacapone tablets is a combination of carbidopa, levodopa, and entacapone for the treatment of Parkinson’s disease. Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.3. It is designated chemically as (-)-L-(α-hydrazino-(α-methyl-β-(3,4-dihydroxybenzene) propanoic acid monohydrate. Its empirical formula is C 10 H 14 N 2 O 4 •H 2 O, and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa, which has a molecular weight of 226.3. Levodopa, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid. Its empirical formula is C 9 H 11 NO 4 , and its structural formula is: Entacapone, a COMT inhibitor, is a nitro-catechol-structured compound with a molecular weight of 305.3. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: Carbidopa, levodopa and entacapone tablets are supplied as tablets in 6 strengths: Carbidopa, levodopa and entacapone tablets: 12.5 mg of carbidopa, 50 mg of levodopa and 200 mg of entacapone Carbidopa, levodopa and entacapone tablets: 18.75 mg of carbidopa, 75 mg of levodopa and 200 mg of entacapone Carbidopa, levodopa and entacapone tablets: 25 mg of carbidopa, 100 mg of levodopa and 200 mg of entacapone Carbidopa, levodopa and entacapone tablets: 31.25 mg of carbidopa, 125 mg of levodopa and 200 mg of entacapone Carbidopa, levodopa and entacapone tablets: 37.5 mg of carbidopa, 150 mg of levodopa and 200 mg of entacapone Carbidopa, levodopa and entacapone tablets: 50 mg of carbidopa, 200 mg of levodopa and 200 mg of entacapone Inactive Ingredients: corn starch, microcrystalline cellulose, croscarmellose sodium, glycerol 85%, hypromellose, magnesium stearate, mannitol, polysorbate 80, povidone, sucrose, red iron oxide, and titanium dioxide. Tablets containing 12.5 mg of carbidopa, 50 mg of levodopa and 200 mg of entacapone, tablets containing 25 mg of carbidopa, 100 mg of levodopa and 200 mg of entacapone and tablets containing 37.5 mg of carbidopa, 150 mg of levodopa and 200 mg of entacapone also contain yellow iron oxide. carbidopa.struct.jpg levodopa.struct.jpg entacapone.struct.jpg

Carbidopa, levodopa and entacapone tablets are a combination of carbidopa, levodopa, and entacapone for the treatment of Parkinson's disease. Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.3. It is designated chemically as (-)-L-(α-hydrazino-(α-methyl-β-(3,4-dihydroxybenzene) propanoic acid monohydrate. Its empirical formula is C 10 H 14 N 2 O 4 •H 2 O, and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa, which has a molecular weight of 226.3. Levodopa, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid. Its empirical formula is C 9 H 11 NO 4 , and its structural formula is: Entacapone, a COMT inhibitor, is a nitro-catechol-structured compound with a molecular weight of 305.3. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: Carbidopa, Levodopa and Entacapone Tablets are supplied as tablets in 6 strengths: Carbidopa, Levodopa and Entacapone Tablets: 12.5 mg of carbidopa, 50 mg of levodopa and 200 mg of entacapone Carbidopa, Levodopa and Entacapone Tablets: 18.75 mg of carbidopa, 75 mg of levodopa and 200 mg of entacapone Carbidopa, Levodopa and Entacapone Tablets: 25 mg of carbidopa, 100 mg of levodopa and 200 mg of entacapone Carbidopa, Levodopa and Entacapone Tablets: 31.25 mg of carbidopa, 125 mg of levodopa and 200 mg of entacapone Carbidopa, Levodopa and Entacapone Tablets: 37.5 mg of carbidopa, 150 mg of levodopa and 200 mg of entacapone Carbidopa, Levodopa and Entacapone Tablets: 50 mg of carbidopa, 200 mg of levodopa and 200 mg of entacapone Inactive Ingredients: corn starch, croscarmellose sodium, glycerol 85%, hypromellose, magnesium stearate, mannitol, polysorbate 80, povidone, sucrose, red iron oxide, and titanium dioxide. Tablets containing 12.5 mg of carbidopa, 50 mg of levodopa and 200 mg of entacapone, tablets containing 25 mg of carbidopa, 100 mg of levodopa and 200 mg of entacapone, and tablets containing 37.5 mg of carbidopa, 150 mg of levodopa and 200 mg of entacapone also contain yellow iron oxide. carbidopa_chemstructure levodopa_chemstructure entacapone_chemstructure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano‑-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are croscarmellose sodium, glycerin, hydrogenated vegetable oil, hypromellose, iron oxide red, iron oxide yellow, lactose monohydrate, magnesium stearate, mannitol, microcrystalline cellulose, polysorbate, sodium starch glycolate, sucrose, and titanium dioxide. Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol‑ O ‑methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol‑structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)‑2‑cyano‑3‑(3,4‑dihydroxy‑5‑nitrophenyl)‑N,N‑diethyl‑2‑ propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the Entacapone Tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide, and titanium dioxide. structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets are microcrystalline cellulose, mannitol, croscarmellose sodium, hydrogenated vegetable oil, hydroxypropyl methylcellulose, polysorbate 80, glycerol 85%, sucrose, magnesium stearate, yellow iron oxide, red iron oxide and titanium dioxide. Entacapone Chemical Structure

Entacapone is available as tablets containing 200 mg entacapone. Entacapone is an inhibitor of catechol- O -methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone USP is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its molecular formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablet are microcrystalline cellulose, sodium starch glycolate, hypromelloses, polyoxyl 40 hydrogenated castor oil, purified water, magnesium stearate, polyethylene glycols, ferric oxide red, ferric oxide yellow, titanium dioxide, polyvinyl alcohol and talc. structure

Entacapone is available as tablets containing 200 mg entacapone, USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano­3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are microcrystalline cellulose, mannitol, croscarmellose sodium, colloidal silicon dioxide, magnesium stearate, hydrogenated vegetable oil, hypromellose, glycerin, titanium dioxide, iron oxide yellow, sucrose, polysorbate 80 and iron oxide red. FDA approved dissolution testing specifications differ from USP. structure

Entacapone is available as tablets containing 200 mg entacapone USP. Entacapone is an inhibitor of catechol-O-methyltransferase (COMT), used in the treatment of Parkinson’s disease as an adjunct to levodopa and carbidopa therapy. It is a nitrocatechol-structured compound with a relative molecular mass of 305.29. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: The inactive ingredients of the entacapone tablets, USP are corn starch, croscarmellose sodium, hypromellose, iron oxide red, iron oxide yellow, magnesium sterate, microcrystalline cellulose, propylene glycol, povidone, talc, titanium dioxide. USP dissolution test 2. 654

Stalevo is a combination of carbidopa, levodopa, and entacapone for the treatment of Parkinson's disease. Carbidopa, an inhibitor of aromatic amino acid decarboxylation, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 244.3. It is designated chemically as (-)-L-(α-hydrazino-(α-methyl-β-(3,4-dihydroxybenzene) propanoic acid monohydrate. Its empirical formula is C 10 H 14 N 2 O 4 ∙H 2 O, and its structural formula is: Tablet content is expressed in terms of anhydrous carbidopa, which has a molecular weight of 226.3. Levodopa, an aromatic amino acid, is a white, crystalline compound, slightly soluble in water, with a molecular weight of 197.2. It is designated chemically as (-)-L-α-amino-β-(3,4-dihydroxybenzene) propanoic acid. Its empirical formula is C 9 H 11 NO 4 , and its structural formula is: Entacapone, a COMT inhibitor, is a nitro-catechol-structured compound with a molecular weight of 305.3. The chemical name of entacapone is (E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide. Its empirical formula is C 14 H 15 N 3 O 5 and its structural formula is: Stalevo is supplied as tablets in 6 strengths: Stalevo 50:12.5 mg of carbidopa, 50 mg of levodopa and 200 mg of entacapone Stalevo 75: 18.75 mg of carbidopa, 75 mg of levodopa and 200 mg of entacapone Stalevo 100: 25 mg of carbidopa, 100 mg of levodopa and 200 mg of entacapone Stalevo125: 31.25 mg of carbidopa, 125 mg of levodopa and 200 mg of entacapone Stalevo 150: 37.5 mg of carbidopa, 150 mg of levodopa and 200 mg of entacapone Stalevo 200: 50 mg of carbidopa, 200 mg of levodopa and 200 mg of entacapone Inactive Ingredients: corn starch, croscarmellose sodium, glycerol 85%, hypromellose, magnesium stearate, mannitol, polysorbate 80, povidone, sucrose, red iron oxide, and titanium dioxide. Stalevo 50, Stalevo 100, and Stalevo 150 also contain yellow iron oxide. Chemical Structure Chemical Structure Chemical Structure