Drug Name:Sulfamethoxazole
Drug Class:Sulfonamide Antibiotic
Mechanism of Action:
  • Inhibits bacterial synthesis of folic acid by competing with para-aminobenzoic acid (PABA)
  • Bacteriostatic
Use:
  • Treatment of urinary tract infections
  • Treatment of respiratory tract infections
  • Treatment of gastrointestinal infections
  • Treatment of skin and soft tissue infections
Side Effects:
  • Nausea
  • Vomiting
  • Diarrhea
  • Headache
  • Rash
  • Photosensitivity
  • Hypersensitivity reactions
  • Blood dyscrasias
Contraindications:
  • Hypersensitivity to sulfonamides
  • Severe hepatic or renal impairment
  • Porphyria
  • Infants younger than 2 months
Specialty:
  • Infectious Disease
  • Internal Medicine
  • Family Medicine