title: Atropine role in the pharmacological erection test: study of 228 patients.
abstract: OBJECTIVE
  We determined the efficacy of atropine sulfate combined with papaverine hydrochloride, prostaglandin E1 and phentolamine mesylate in the pharmacological erection test.
  
  
  METHODS
  A total of 230 consecutive patients with erectile dysfunction was randomized for pharmacological erection test and received an intracorporeal combination of 50 mg. papaverine hydrochloride, 10 micrograms. prostaglandin E1, 0.2 mg. phentolamine mesylate and 0.075 mg. of atropine sulfate (group 1), or the same combination without atropine sulfate (group 2). Erectile response was evaluated subjectively and by intracorporeal pressure measurement.
  
  
  RESULTS
  In group 1, 40 patients (35.1%) showed only tumescence, and 22 (19.3%) had poor erection. In group 2, 45 patients (39.5%) had tumescence and 17 (14.9%) poor erection. In both groups 52 patients (45.6%) had rigid erection. There was no statistically significant difference regarding erectile response and intracorporeal pressure.
  
  
  CONCLUSIONS
  The addition of atropine sulfate did not improve results of the pharmacological erection test when combined with 50 mg. papverine hydrochloride, 10 micrograms, prostaglandin E1, and 0.2 mg. phentolamine mesylate.
authors.affiliation: Department of Urology, Santa Casa de Porto Alegre, Brazil.
authors.forename: P R
authors.initials: PR
authors.lastname: Sogari
authors.forename: C
authors.initials: C
authors.lastname: Telöken
authors.forename: C A
authors.initials: CA
authors.lastname: Souto
mesh_terms: D000328:Adult; D000368:Aged; D000527:Alprostadil / Q000494:pharmacology / Q000627:therapeutic use; D001285:Atropine / Q000494:pharmacology* / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D007172:Erectile Dysfunction / Q000175:diagnosis* / Q000188:drug therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010208:Papaverine / Q000494:pharmacology / Q000627:therapeutic use; D010410:Penile Erection / Q000187:drug effects*; D010646:Phentolamine / Q000494:pharmacology / Q000627:therapeutic use; D012307:Risk Factors; D014665:Vasodilator Agents / Q000494:pharmacology*
chemical_list: D014665:Vasodilator Agents; D001285:Atropine; D010208:Papaverine; D000527:Alprostadil; D010646:Phentolamine