Verapamil 120 mg ER-MYL, green/white, capsule. Verapamil 180 mg ER-SCH, orange, oblong, film coated.Q: I have been taking verapamil HCl for quite some time, first for migraines then for some blood pressure. Now I cannot get an erection but I don't know if Verapamil has anything to do with it....