This invention relates to a pharmaceutical composition for angiotensin II-mediated diseases, which comprises a compound having angiotensin II antagonistic activity of the formula ##STR1## wherein R.sup.1 is H or an optionally substituted hydrocarbon residue; R.sup.2 is an optionally esterified carboxyl group; R.sup.3 is a group capable of forming an anion or a group convertible thereinto; X is a covalent bond between the 2 phenyl rings or a spacer having a chain length of 1 to 2 atoms as the linear moiety between the adjoining phenylene group and phenyl group; n is 1 or 2; the ring A is a benzene ring having 1 or 2 optional substituents in addition to R.sup.2 ; and Y is a bond, --O--, --S(O)m- (wherein m is 0, 1 or 2) or --N(R.sup.4)-- (wherein R.sup.4 is H or an optionally substituted alkyl group), or a pharmaceutically acceptable salt thereof in combination with a compound having diuretic activity or a compound having calcium antagonistic activity.