Drug reference
tiotropium
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 (Anticholinergics)
Mechanism of action
Tiotropium is an antagonist of muscarinic receptors M1 to M5. Inhibition of the M3 receptor in the smooth muscle of the lungs leads to relaxation of smooth muscle and bronchodilation.
Common side effects
- Upper respiratory tract infection
- Dry mouth
- Sinusitis
Contraindications
- History of hypersensitivity to ipratropium or tiotropium History of severe hypersensitivity to milk proteins (excipient in powder contained in capsule) Lactose allergy
Related conditions
Frequently asked questions
What drug class is tiotropium?
tiotropium belongs to: Respiratory.
How does tiotropium work?
Tiotropium is an antagonist of muscarinic receptors M1 to M5. Inhibition of the M3 receptor in the smooth muscle of the lungs leads to relaxation of smooth muscle and bronchodilation.
What are the common side effects of tiotropium?
Upper respiratory tract infection, Dry mouth, Sinusitis
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