title: Intraurethral alprostadil for impotence.
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000527:Alprostadil / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use*; D004311:Double-Blind Method; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D007022:Hypotension / Q000139:chemically induced; D007267:Injections; D008297:Male; D008875:Middle Aged; D011317:Priapism / Q000139:chemically induced; D014521:Urethra; D014665:Vasodilator Agents / Q000008:administration & dosage*
chemical_list: D014665:Vasodilator Agents; D000527:Alprostadil