Tiotropium
Inhaled long-acting anticholinergic (LAMA)
Brand names: Spiriva
Oral health effects
Xerostomia
Dry mouth is the most common side effect of long-acting inhaled anticholinergics.
Mechanism: Muscarinic receptor blockade.
Clinical management: Advise rinsing after inhaler use; reinforce fluoride and hydration.
Oropharyngeal candidiasis (thrush)
Oropharyngeal candidiasis occurred in 1-3% of COPD patients (Respimat 5 mcg) and 1-2% of asthma patients (2.5 mcg), more often than with placebo. It is also reported with the HandiHaler. Anticholinergic dry mouth adds to the risk.
Clinical management: Examine for white or erythematous patches, especially in denture wearers with dry mouth. Refer for antifungal therapy. Advise rinsing after dosing and nightly denture removal and cleaning.
Mouth irritation (stomatitis, gingivitis, glossitis) and hoarseness
Dysphonia occurred in 1-3% of COPD patients on Respimat 5 mcg. Gingivitis (<1%), stomatitis (including ulcerative stomatitis), glossitis and mouth ulceration are reported less often in trials and postmarketing.
Clinical management: Inspect the mucosa and gingiva at recall. Bland rinses and a soft brush for soreness. Manage dry mouth (often the underlying driver), and refer for persistent ulceration or hoarseness.
Sources
- A Guide to Medications Inducing Salivary Gland Dysfunction, Xerostomia, and Subjective Sialorrhea: A Systematic Review Sponsored by the World Workshop on Oral Medicine VI. Wolff A, Joshi RK, Ekström J, et al. Drugs in R&D, 2017.
- Tiotropium (Spiriva HandiHaler) prescribing information (FDA label) Boehringer Ingelheim Pharmaceuticals, Inc. / DailyMed, 2025.
- Tiotropium (Spiriva Respimat) prescribing information (FDA label) Boehringer Ingelheim Pharmaceuticals, Inc. / DailyMed, 2026.