Drug interactions
Diphenoxylate + Haloperidol
Severity: Moderate
Diphenoxylate and Haloperidol: 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
Diphenoxylate is an opioid antidiarrheal that can cause CNS depression at higher doses. With haloperidol, additive sedation is possible.
What this interaction means in plain words
Diphenoxylate and Haloperidol 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.
Diphenoxylate belongs to Gastrointestinal Tract; Haloperidol belongs to Central Nervous System.
Why it happens
Additive CNS depression.
What to do
Counsel patients about drowsiness and avoid exceeding recommended doses of diphenoxylate.
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 Haloperidol
- Dofetilide + Haloperidol Contraindicated
- Dronedarone + Haloperidol Contraindicated
- Haloperidol + Ibutilide Contraindicated
- Haloperidol + Levoketoconazole Contraindicated
- Haloperidol + Panobinostat Contraindicated
- Haloperidol + Pimozide Contraindicated
Other interactions of Diphenoxylate
Frequently asked questions
Can I take Diphenoxylate with Haloperidol?
MediHelp rates the interaction as moderate. Diphenoxylate and Haloperidol 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. Diphenoxylate is an opioid antidiarrheal that can cause CNS depression at higher doses. With haloperidol, additive sedation is possible.
How serious is the interaction between Diphenoxylate and Haloperidol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Counsel patients about drowsiness and avoid exceeding recommended doses of diphenoxylate.
What other medicines interact with Haloperidol?
MediHelp also lists interactions of Haloperidol with, for example, Dofetilide, Dronedarone, Ibutilide. The full list is on the Haloperidol page.
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