title: Impotence during therapy with verapamil.
mesh_terms: D000328:Adult; D000368:Aged; D004077:Digoxin / Q000008:administration & dosage; D004359:Drug Therapy, Combination; D007172:Erectile Dysfunction / Q000139:chemically induced*; D006331:Heart Diseases / Q000188:drug therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D014700:Verapamil / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D004077:Digoxin; D014700:Verapamil