Patent ID: 8580302

Claim:
A pharmaceutical composition in a solid unit dosage form for oral administration in a human or lower animal comprising: a. a core comprising a safe and effective amount of a therapeutically active agent; and b. a coating, wherein the coating comprises an inner coating layer and an outer coating layer, wherein the outer coating layer comprises an enteric polymer or a film coating material, wherein said enteric polymer begins to dissolve in an aqueous medium at a pH of less than about 7, and said enteric polymer comprises a polymer selected from the group consisting of polymethacrylates, anionic polymethacrylates, poly(methacrylic acid, methyl methacrylate) 1:1, mixtures of poly(methacrylic acid, methyl methacrylate) 1:2 and poly(methacrylic acid, methyl methacrylate) 1:1, polyvinyl acetate phthalate, poly(methacrylic acid, ethyl acrylate) 1:1, and compatible mixtures thereof, wherein said film coating material comprises a component selected from the group consisting of cellulose acetate phthalate, cellulose acetate trimelliate, hydroxypropyl methylcellulose phthalate (HPMCP), cellulose propionate phthalate, cellulose acetate maleate, hydroxypropyl methylcellulose acetate succinate (HPMCAS), hydroxypropyl methylcellulose hexahydrophthalate, and mixtures thereof, wherein the solid unit dosage form has a total weight from about 550 mg to about 1500 mg, wherein the inner coating layer is not the same as the outer coating layer, and wherein the inner coating layer and the outer coating layer do not contain said therapeutically active agent.