Patent ID: 6852743

Claim:
A method for preventing recurrence of cerebrovascular disorder in a mammal, which comprises administering an effective amount of a compound having an angiotensin II antagonistic activity, a prodrug thereof or a salt thereof to the mammal, wherein the compound having an angiotensin II antagonistic activity is a compound represented by the formula (I): wherein R 1 represents a group capable of forming an anion or being converted into said group, X indicates that the phenylene group and the phenyl group are bound to each other directly or via a spacer of a chain made of 2 or less atoms, n is an integer of 1 or 2, ring A represents a benzene ring which may further have substituent(s), R 2 represents a group capable of forming an anion or being converted into said group, and R 3 represents a hydrocarbon residue which may be bound via a heteroatom and may have substituent(s).