| Drug Name: | Terfenadine |
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| Drug Class: | Antihistamine |
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| Mechanism of Action: | Blocks histamine H1 receptors |
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| Use: | - Relief of symptoms associated with allergic rhinitis
- Relief of symptoms associated with urticaria
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| Side Effects: | - Drowsiness
- Dry mouth
- Headache
- Nausea
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| Contraindications: | - Concomitant use with CYP3A4 inhibitors
- QT prolongation
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| Specialty: | - Allergy and Immunology
- Dermatology
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