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Drug Guide


    Allegra, Telfast 
  • Mechanism of Action

  • Inverse agonist to histamine H1 receptors, having the opposite effect of histamine.
  • Pharmacology

  • Does not readily cross the blood-brain barrier and thus is less sedative than first generation antihistamines

Clinical Use

  • Indications
  • Allergic rhinitis
  • Urticaria
  • Adverse Effects
  • Headache
  • Dry mouth
  • Fatigue
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