Drug Name:Chlorpheniramine
Drug Class:First-generation antihistamine
Mechanism of Action:Competitive antagonist of histamine H1 receptors
Use:
  • Relief of symptoms caused by allergic conditions such as hay fever, urticaria, and angioedema
  • Management of motion sickness
  • Treatment of mild, uncomplicated allergic skin reactions
Side Effects:
  • Drowsiness
  • Dry mouth
  • Blurred vision
  • Constipation
  • Urinary retention
Contraindications:
  • Hypersensitivity to chlorpheniramine or other antihistamines
  • Narrow-angle glaucoma
  • Stenosing peptic ulcer
  • Symptomatic prostatic hypertrophy
  • Bladder neck obstruction
Specialty:
  • Allergy and Immunology
  • Emergency Medicine
  • Family Medicine
  • Internal Medicine
  • Pediatrics