Aclidinium
Antimuscarinic · Airways disease, obstructive
Also known as Aclidinium bromide
Mechanism
Aclidinium is an antimuscarinic agent, functioning as a synthetic analog of atropine. It acts by antagonizing muscarinic receptors, particularly M3 receptors in the airways, to inhibit the vagally-mediated bronchoconstrictor reflex. This blockade leads to bronchodilation, which is beneficial in patients with chronic obstructive pulmonary disease (COPD).
Indications
Dosing
- Adult
- 375 micrograms twice daily by inhalation of powder
- Geriatric
- Prescription potentially inappropriate (STOPP criteria) with a history of narrow-angle glaucoma (may exacerbate glaucoma) or bladder outflow obstruction (may cause urinary retention).
Pharmacokinetics
Contraindications
- Arrhythmia (when newly diagnosed within last 3 months)
- Heart failure (hospitalisation with moderate or severe heart failure within last 12 months)
- Myocardial infarction within last 6 months
- Unstable angina
- Bladder outflow obstruction
- Paradoxical bronchospasm
- Prostatic hyperplasia
- Susceptibility to angle-closure glaucoma
- History of narrow-angle glaucoma
Side effects
- Angioedema
- Hypersensitivity
Pregnancy & lactation
Manufacturer advises use only if potential benefit outweighs risk.
Manufacturer advises only use if potential benefits outweigh risks.
Drug interactions
12 additional unreviewed or low-confidence interactions hidden because their provenance or source detail is insufficient.
Related guidelines
Other Antimuscarinic drugs
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Textbook-sourced·Sources: Goodman & Gilman 14e, Katzung, BNF·Updated: 2026-05-10