Drug interactions
Dimenhydrinate + Tiotropium-olodaterol
Severity: Minor
Dimenhydrinate and Tiotropium-olodaterol: minor 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 substantial anticholinergic activity and tiotropium is an inhaled antimuscarinic with small systemic exposure. Together they may add to dry mouth, urinary retention, constipation, blurred vision and glaucoma risk.
What this interaction means in plain words
Dimenhydrinate and Tiotropium-olodaterol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dimenhydrinate belongs to Respiratory; Tiotropium-olodaterol belongs to Respiratory.
Why it happens
Additive muscarinic receptor blockade from systemic dimenhydrinate and absorbed tiotropium.
What to do
Monitor for anticholinergic effects, especially in older adults or those with prostatic hypertrophy or narrow-angle glaucoma. Prefer a non-anticholinergic antiemetic if symptoms develop.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Tiotropium-olodaterol
Other interactions of Dimenhydrinate
Frequently asked questions
Can I take Dimenhydrinate with Tiotropium-olodaterol?
MediHelp rates the interaction as minor. Dimenhydrinate and Tiotropium-olodaterol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Dimenhydrinate has substantial anticholinergic activity and tiotropium is an inhaled antimuscarinic with small systemic exposure. Together they may add to dry mouth, urinary retention, constipation, blurred vision and glaucoma risk.
How serious is the interaction between Dimenhydrinate and Tiotropium-olodaterol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic effects, especially in older adults or those with prostatic hypertrophy or narrow-angle glaucoma. Prefer a non-anticholinergic antiemetic if symptoms develop.
What other medicines interact with Tiotropium-olodaterol?
MediHelp also lists interactions of Tiotropium-olodaterol with, for example, Amisulpride, Arformoterol, Arsenic trioxide. The full list is on the Tiotropium-olodaterol page.
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