Drug interactions
Benperidol + Loxapine
Severity: Moderate
Benperidol and Loxapine: 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
Both are dopamine-blocking antipsychotics, so using them together increases the risk of extrapyramidal symptoms, tardive dyskinesia, neuroleptic malignant syndrome and sedation. Benperidol is a potent butyrophenone, so movement disorders may be prominent.
What this interaction means in plain words
Benperidol and Loxapine 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 dopamine D2 receptor antagonism and additive sedative effects.
What to do
Avoid antipsychotic polypharmacy where possible, and monitor for extrapyramidal symptoms, sedation and QTc if both are required.
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 Loxapine
- Alfentanil + Loxapine Major
- Alprazolam + Loxapine Major
- Amisulpride + Loxapine Major
- Amoxapine + Loxapine Major
- Apomorphine + Loxapine Major
- Belladonna and opium + Loxapine Major
Frequently asked questions
Can I take Benperidol with Loxapine?
MediHelp rates the interaction as moderate. Benperidol and Loxapine 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. Both are dopamine-blocking antipsychotics, so using them together increases the risk of extrapyramidal symptoms, tardive dyskinesia, neuroleptic malignant syndrome and sedation. Benperidol is a potent butyrophenone, so movement disorders may be prominent.
How serious is the interaction between Benperidol and Loxapine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid antipsychotic polypharmacy where possible, and monitor for extrapyramidal symptoms, sedation and QTc if both are required.
What other medicines interact with Loxapine?
MediHelp also lists interactions of Loxapine with, for example, Alfentanil, Alprazolam, Amisulpride. The full list is on the Loxapine page.
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