title: The efficacy of combined low dose of Allopurinol and benzbromarone compared to standard dose of Allopurinol in hyperuricemia.
abstract: OBJECTIVE
  To compare the efficacy of combined low dose of hypouricemic drugs (Allopurinol 100 mg and benzbromarone 20 mg; Allomaron) and standard dose 300 mg of allopurinol in hyperuricemia.
  
  
  METHODS
  A prospective, open study of 94 hyperuricemic patients was done at King Chulalongkorn Memorial Hospital. Each group of 47 patients was given a combined low dose of hypouricemic drugs (Allopurinol 100 mg and benzbromarone 20 mg; Allomaron) and a standard dose 300 mg of allopurinol. Serum uric acid was measured before and 4 weeks after receiving the drugs. The efficacy was measured from the difference of the level of serum uric acid before and after receiving the drugs.
  
  
  RESULTS
  The patients receiving the combined low dose of hypouricemic drugs and standard dose of allopurinol showed a mean reduction of serum uric acid of 2.5+/-3.4 mg/dl and 4.1+/-2.7 mg/dl consecutively. There was a statistically significant difference between the 2 groups (P = 0.010).
  
  
  CONCLUSIONS
  This study demonstrates that the efficacy of standard dose 300 mg of allopurinol is superior to a combined low dose of allopurinol and benzbromarone in lowering the level of serum uric acid level.
authors.affiliation: Department of Medicine, Faculty of Medicine, Chulalongkorn University, Thailand.
authors.forename: Somchai
authors.initials: S
authors.lastname: Akkasilpa
authors.forename: Manathip
authors.initials: M
authors.lastname: Osiri
authors.forename: Utis
authors.initials: U
authors.lastname: Deesomchok
authors.forename: Yingyos
authors.initials: Y
authors.lastname: Avihingsanon
mesh_terms: D000493:Allopurinol / Q000008:administration & dosage*; D001553:Benzbromarone / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D005260:Female; D006073:Gout / Q000097:blood / Q000188:drug therapy*; D006074:Gout Suppressants / Q000008:administration & dosage*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D016896:Treatment Outcome; D014527:Uric Acid / Q000097:blood; D014528:Uricosuric Agents / Q000008:administration & dosage*
chemical_list: D006074:Gout Suppressants; D014528:Uricosuric Agents; D014527:Uric Acid; D001553:Benzbromarone; D000493:Allopurinol