The present invention provides: a compound represented by general formula (I) below, that has both angiotensin II receptor antagonism and a PPARγ activation effect and that is useful as a preventative and/or therapeutic agent for high blood pressure, cardiac disease, arteriosclerosis, type-2 diabetes, and the like； and a drug composition containing the compound. General formula (I) (in the formula: ring A represents a pyridine ring； ring B represents a tetrazole ring or an oxadiazol-5(4H)-one ring； X represents C—R5 or a nitrogen atom； R1 represents an alkyl group； R2 represents an alkyl group or a cycloalkyl group； and R3, R4, and R5 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group or similar.
