Examples are drugs like beta-blockers (propranolol [Inderal], atenolol [Tenormin]), anticonvulsants (topiramate [Topamax], divalproex [Depakote], carbamazepine [Tegretol]), tricyclic antidepressants (
amitriptyline [Elavil], nortriptyline [Aventyl]),
and calcium channel blockers (verapamil [Covera]).