Drug interactions
Dimenhydrinate + Thiothixene
Severity: Moderate
Dimenhydrinate and Thiothixene: 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
Thiothixene is a sedating antipsychotic with some anticholinergic activity, so with dimenhydrinate it can cause increased drowsiness and anticholinergic effects such as confusion and urinary retention.
What this interaction means in plain words
Dimenhydrinate and Thiothixene 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 CNS depression and antimuscarinic effects.
What to do
Monitor sedation and anticholinergic symptoms, especially in older patients. Reduce doses or choose a less sedating antiemetic if problems arise.
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 Thiothixene?
MediHelp rates the interaction as moderate. Dimenhydrinate and Thiothixene 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. Thiothixene is a sedating antipsychotic with some anticholinergic activity, so with dimenhydrinate it can cause increased drowsiness and anticholinergic effects such as confusion and urinary retention.
How serious is the interaction between Dimenhydrinate and Thiothixene?
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 sedation and anticholinergic symptoms, especially in older patients. Reduce doses or choose a less sedating antiemetic if problems arise.
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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