Patent ID: 7294344

Claim:
An injectable sustained-release preparation which comprises a compound having angiotensin II antagonistic activity, its pro-drug or its salt, and a biodegradable polymer, wherein said compound having angiotensin II antagonistic activity is a compound selected from the group consisting of 2-ethoxy-1-[[2′-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylic acid, 1-(cyclohexyloxycarbonyloxy)ethyl 2-ethoxy-1-[[2′-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylate and 2-ethoxy-1-[[2′-(4,5-dihydro-5-oxo-1,2,4-oxadiazol-3-yl)biphenyl-4-yl]methyl]benzimidazole-7-carboxylic acid, and is formulated as an injectable sustained release preparation.