Drug interactions
Dimenhydrinate + Glycopyrronium tosylate
Severity: Moderate
Dimenhydrinate and Glycopyrronium tosylate: moderate interaction.
Last updated
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.
Summary
Dimenhydrinate has strong antimuscarinic activity, and topical glycopyrronium can be absorbed systemically to a small extent. Combined use may add to anticholinergic effects such as dry mouth, blurred vision, urinary retention and constipation.
What this interaction means in plain words
Dimenhydrinate and Glycopyrronium tosylate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Additive antimuscarinic pharmacodynamic effects.
What to do
Monitor for anticholinergic adverse effects, particularly in older patients or those with glaucoma or urinary retention. Reduce or stop one agent if symptoms develop.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Dimenhydrinate
Frequently asked questions
Can I take Dimenhydrinate with Glycopyrronium tosylate?
MediHelp rates the interaction as moderate. Dimenhydrinate and Glycopyrronium tosylate can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Dimenhydrinate has strong antimuscarinic activity, and topical glycopyrronium can be absorbed systemically to a small extent. Combined use may add to anticholinergic effects such as dry mouth, blurred vision, urinary retention and constipation.
How serious is the interaction between Dimenhydrinate and Glycopyrronium tosylate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic adverse effects, particularly in older patients or those with glaucoma or urinary retention. Reduce or stop one agent if symptoms develop.
What other medicines interact with Dimenhydrinate?
MediHelp also lists interactions of Dimenhydrinate with, for example, Belladonna and opium, Brexanolone, Calcium / magnesium / potassium / sodium oxybates. The full list is on the Dimenhydrinate page.
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