What medications cause dry mouth?
Last updated September 3, 2026.
Hundreds of medicines reduce saliva production, per the NIH, with blood pressure drugs, antidepressants, bladder-control medicines, antihistamines, and decongestants leading. The stakes are dental: saliva controls harmful germs, so dry mouth raises decay and oral fungal infection risk. Manage it with constant water sips, sugar-free gum or lozenges, alcohol-free mouthwash, and a night humidifier, and ask the dentist about saliva substitutes and prescription fluoride. Raise it with the prescriber too: the effect is dose-related and alternatives sometimes fix it. And per the NIDCR, dry mouth is not a normal part of aging.
What to do
- Sip water constantly and chew sugar-free gum.
- Use alcohol-free mouthwash and a night humidifier.
- Ask the dentist about saliva substitutes and fluoride.
- Ask the prescriber about alternatives; the effect is dose-related.
Related questions
- Why do I get a dry mouth at night?
- What does it mean if food tastes different all of a sudden?
- How much water should I drink a day?
- What happens at an allergy test?