Drug interactions
Diethylpropion + Pimozide
Severity: Moderate
Diethylpropion and Pimozide: 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
Diethylpropion is a sympathomimetic stimulant whose effects oppose pimozide's sedating and dopamine-blocking actions. It may also increase heart rate and worsen psychiatric symptoms.
What this interaction means in plain words
Diethylpropion and Pimozide 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
Pharmacodynamic opposition between sympathomimetic stimulation and dopamine blockade.
What to do
Monitor heart rate, blood pressure and psychiatric status. Consider alternative weight management if symptoms worsen.
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 Pimozide
- Adagrasib + Pimozide Contraindicated
- Amiodarone + Pimozide Contraindicated
- Amisulpride + Pimozide Contraindicated
- Amitriptyline + Pimozide Contraindicated
- Amoxapine + Pimozide Contraindicated
- Anagrelide + Pimozide Contraindicated
Frequently asked questions
Can I take Diethylpropion with Pimozide?
MediHelp rates the interaction as moderate. Diethylpropion and Pimozide 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. Diethylpropion is a sympathomimetic stimulant whose effects oppose pimozide's sedating and dopamine-blocking actions. It may also increase heart rate and worsen psychiatric symptoms.
How serious is the interaction between Diethylpropion and Pimozide?
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 heart rate, blood pressure and psychiatric status. Consider alternative weight management if symptoms worsen.
What other medicines interact with Pimozide?
MediHelp also lists interactions of Pimozide with, for example, Adagrasib, Amiodarone, Amisulpride. The full list is on the Pimozide page.
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