Drug interactions
Dimenhydrinate + Etomidate
Severity: Moderate
Dimenhydrinate and Etomidate: 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
Etomidate is an intravenous anesthetic induction agent, and a sedating antihistamine may enhance its hypnotic effect or prolong recovery. This is mainly relevant in the perioperative setting.
What this interaction means in plain words
Dimenhydrinate and Etomidate 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 belongs to Respiratory; Etomidate belongs to Central Nervous System.
Why it happens
Additive CNS depression from GABA-A potentiation by etomidate and central H1 antagonism.
What to do
Inform the anesthesia team of recent antihistamine use and titrate anesthetic dosing to effect. Monitor recovery and airway status.
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
Other interactions of Etomidate
- Alprazolam + Etomidate Moderate
- Amitriptyline + Etomidate Moderate
- Amobarbital + Etomidate Moderate
- Azelastine + Etomidate Moderate
- Baclofen + Etomidate Moderate
- Brompheniramine + Etomidate Moderate
Frequently asked questions
Can I take Dimenhydrinate with Etomidate?
MediHelp rates the interaction as moderate. Dimenhydrinate and Etomidate 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. Etomidate is an intravenous anesthetic induction agent, and a sedating antihistamine may enhance its hypnotic effect or prolong recovery. This is mainly relevant in the perioperative setting.
How serious is the interaction between Dimenhydrinate and Etomidate?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Inform the anesthesia team of recent antihistamine use and titrate anesthetic dosing to effect. Monitor recovery and airway status.
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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