title: [Comparing effect in the management of erectile dysfunction by using 2 sets of drugs of intracavernosal injection].
abstract: OBJECTIVE
  To supply clinical data for drug selextion in the treatment of erectile dysfunction through intracavernosal injection.
  
  
  METHODS
  Fifty-six ED patients were randomly classified into 2 groups and received phentolamine along with papaverine (for group 1) or phentolamine, papaverine and ligustrazin hydrochloride(for group 2).
  
  
  RESULTS
  Patients in group 2 enjoyed a longer time of erection. More patients in group 2 succeeded in having enough erection time and hardness to complete sexual intercourse (P < 0.05).
  
  
  CONCLUSIONS
  The extrainjection of ligustrazin hydrochloride injection can help prolong erection duration and hardness and reduce tubercles that might occur in the corpus carvernosal. Therefore it is a safe and inexpensive drug in the intracarvernous injection treatment.
authors.affiliation: Medical Service Center of Family Planning of Hanzhong District, Hanzhong, Shan'xi 723000, China.
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Jian
authors.forename: Ji-Chang
authors.initials: JC
authors.lastname: Hao
mesh_terms: D000328:Adult; D007172:Erectile Dysfunction / Q000188:drug therapy*; D006801:Humans; D007267:Injections; D008297:Male; D008875:Middle Aged; D010208:Papaverine / Q000008:administration & dosage*; D010646:Phentolamine / Q000008:administration & dosage*; D011719:Pyrazines / Q000008:administration & dosage*
chemical_list: D011719:Pyrazines; D010208:Papaverine; C017953:tetramethylpyrazine; D010646:Phentolamine