title: Comparison of sulfamethoxazole alone and combined with trimethoprim in urinary tract infections.
abstract: In a double blind, randomized study, sulfamethoxazole was compared alone and in combination with trimethoprim as commonly used in therapeutic regimes for the treatment of uncomplicated acute urinary tract infections in out-patients. The cure of sulfamethoxazole alone was 92.2%, and for sulfamethoxazole plus trimethoprim 97.6%. The rate of side-effects for the former was 5%, for the latter 21.8%. If the failure rate plus the rate of occurrence of rash, which necessitated discontinuing the drug, are combined, it appears that 8.8% of the patients were at a disadvantage receiving sulfamethoxazole compared to 9.7% for the combination of sulfamethoxazole plus trimethoprim. When considering the cure rate and rate of side-effects together, therefore, the position of sulfamethoxazole alone as a suitable drug in this type of infection is defended.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005260:Female; D006801:Humans; D008297:Male; D013420:Sulfamethoxazole / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D014295:Trimethoprim / Q000008:administration & dosage* / Q000009:adverse effects / Q000627:therapeutic use; D014552:Urinary Tract Infections / Q000188:drug therapy*
chemical_list: D014295:Trimethoprim; D013420:Sulfamethoxazole