Patent ID: 11911513
Assignee: SHANGHAI WD PHARMACEUTICAL CO., LTD
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 5:
6. The method of claim 5, wherein in the extended release platform, the pharmaceutical composition is composed of a drug-containing layer and a coating membrane; the pharmaceutical composition is composed of a drug-containing layer, an osmotic push layer and a coating membrane; or the pharmaceutical composition is composed of a drug-containing layer, an osmotic push layer, a coating membrane, and an overcoat;
or, the drug-containing layer is composed of levodopa, carbidopa, microcrystalline cellulose, mannitol, citric acid, sodium hydroxypropyl methyl cellulose and magnesium stearate; or the drug-containing layer is composed of levodopa, microcrystalline cellulose, hydroxypropyl methyl cellulose and magnesium stearate; or the drug-containing layer is composed of levodopa, carbidopa, mannitol, citric acid and magnesium stearate; or the drug-containing layer is composed of levodopa, carbidopa, hydroxypropyl cellulose, mannitol, citric acid and magnesium stearate; or the drug-containing layer is composed of levodopa, carbidopa, hydroxypropyl cellulose, mannitol, citric acid, and povidone K30; or the drug-containing layer is composed of levodopa, hydroxypropyl cellulose, mannitol, povidone K30, magnesium stearate, mint flavor and aspartame; or the drug-containing layer is composed of levodopa, mannitol, povidone K30 and magnesium stearate; or the drug-containing layer is composed of levodopa, carbidopa, hydroxypropyl cellulose, mannitol, aspartame and magnesium stearate; or the drug-containing layer is composed of levodopa, hydroxypropyl cellulose, mannitol, magnesium stearate, mint flavor and aspartame; or the drug-containing layer is composed of levodopa, hydroxypropyl cellulose, mannitol, povidone K30, magnesium stearate and aspartame; or the drug-containing layer is composed of levodopa, hydroxypropyl cellulose, mannitol, povidone K30, magnesium stearate, and aspartame;
the osmotic push layer is composed of sodium carboxymethyl cellulose, povidone K30, sorbitol, iron oxide red and magnesium stearate, or the osmotic push layer is composed of sodium carboxymethyl cellulose, hydroxypropyl cellulose, sorbitol, iron oxide red and magnesium stearate; or, the sodium carboxymethyl cellulose is sodium carboxymethyl cellulose 7H4XF or 9H4XF;
or, the overcoat is composed of levodopa, carbidopa, hydroxypropyl cellulose, aspartame, and mint flavor; or the overcoat is composed of levodopa, carbidopa, hydroxypropyl cellulose and aspartame; or the overcoat is composed of carbidopa, hydroxypropyl cellulose and aspartame; or the overcoat is composed of levodopa, hydroxypropyl cellulose, and mint flavor.