because cerebrovascular events might result from platelet aggregation , enhancing platelet activity further in the treatment of migraine is not desirable . beta-adrenoceptor blockers effective in migraine prophylaxis include propranolol ( nonselective ) and metoprolol ( beta 1-selective ) , but it is uncertain how beta-receptor subtype selectivity might influence platelet behavior in migraine .
C0033497
propranolol
C0149931
migraine