title: Intracavernosal pharmacotherapy with injection pen.
mesh_terms: D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D007267:Injections / Q000295:instrumentation*; D008297:Male; D010208:Papaverine / Q000008:administration & dosage*; D010413:Penis; D010646:Phentolamine / Q000008:administration & dosage*
chemical_list: D010208:Papaverine; D010646:Phentolamine