Drug reference
clemastine
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Respiratory (Anti Histamine)
Mechanism of action
Clemastine competes with histamine for the histamine H1 receptor, reversible competitive inhibitor.
Common side effects
- Sedation
- Fatigue
- Headaches
- Dry Mouth
Contraindications
- Documented hypersensitivity Lower respiratory disease, eg, asthma (controversial) Preemies & neonates Nursing women
Related conditions
Frequently asked questions
What drug class is clemastine?
clemastine belongs to: Respiratory.
How does clemastine work?
Clemastine competes with histamine for the histamine H1 receptor, reversible competitive inhibitor.
What are the common side effects of clemastine?
Sedation, Fatigue, Headaches, Dry Mouth
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