Drug interactions
Asenapine transdermal + Loxapine
Severity: Moderate
Asenapine transdermal 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 antipsychotics, so combining them increases sedation, orthostatic hypotension, QT effects and the risk of extrapyramidal symptoms or neuroleptic malignant syndrome. Duplicate antipsychotic therapy offers little proven benefit.
What this interaction means in plain words
Asenapine transdermal 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 and other receptor antagonism producing additive sedative, hypotensive and extrapyramidal effects.
What to do
Avoid concurrent use where possible, and cross-taper when switching. If combined, monitor sedation, blood pressure, movement symptoms and QTc.
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 Asenapine transdermal with Loxapine?
MediHelp rates the interaction as moderate. Asenapine transdermal 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 antipsychotics, so combining them increases sedation, orthostatic hypotension, QT effects and the risk of extrapyramidal symptoms or neuroleptic malignant syndrome. Duplicate antipsychotic therapy offers little proven benefit.
How serious is the interaction between Asenapine transdermal 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 concurrent use where possible, and cross-taper when switching. If combined, monitor sedation, blood pressure, movement symptoms and QTc.
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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