초록

A dosage form comprising a composition comprising a drug surrounded by a first coat and a second coat with an exit for administering the drug to a patient; and a method of using the dosage form are disclosed for an indicated therapy.

대표청구항 ▼

[We claim:] [1.]a drug composition that comprises a drug and a pharmaceutically acceptable carrier, a first coat that surrounds the drug composition, wherein the first coat comprising ethyl cellulose and hydroxyalkycellulose;a second coat that surrounds the first coat, the second coat comprising a c

[We claim:] [1.]a drug composition that comprises a drug and a pharmaceutically acceptable carrier, a first coat that surrounds the drug composition, wherein the first coat comprising ethyl cellulose and hydroxyalkycellulose;a second coat that surrounds the first coat, the second coat comprising a composition having at least one of a cellulose acylate, cellulose diacylate or cellulose triacylate wherein the composition is permeable to the passage of fluid and impermeable to the passage of drug; andan exit passageway in the first and second coats for releasing the drug from the dosage form over an extended time.