Drug interactions
Asenapine + Lorcaserin
Severity: Moderate
Asenapine and Lorcaserin: 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
Lorcaserin is a serotonin 5-HT2C agonist, and use with antipsychotics that affect serotonin and dopamine pathways may raise the risk of serotonin syndrome or neuroleptic malignant syndrome. Lorcaserin has been withdrawn from the US market, which limits current relevance.
What this interaction means in plain words
Asenapine and Lorcaserin 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 serotonergic effects with dopamine receptor blockade; the exact mechanism is theoretical.
What to do
Monitor for agitation, tremor, clonus, hyperthermia and rigidity if the combination is used. Discontinue and treat supportively if serotonin toxicity or NMS develops.
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 Asenapine
- Asenapine + Pimozide Contraindicated
- Asenapine + Thioridazine Contraindicated
- Asenapine + Vandetanib Contraindicated
- Adagrasib + Asenapine Major
- Alfentanil + Asenapine Major
- Alfuzosin + Asenapine Major
Frequently asked questions
Can I take Asenapine with Lorcaserin?
MediHelp rates the interaction as moderate. Asenapine and Lorcaserin 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. Lorcaserin is a serotonin 5-HT2C agonist, and use with antipsychotics that affect serotonin and dopamine pathways may raise the risk of serotonin syndrome or neuroleptic malignant syndrome. Lorcaserin has been withdrawn from the US market, which limits current relevance.
How serious is the interaction between Asenapine and Lorcaserin?
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 for agitation, tremor, clonus, hyperthermia and rigidity if the combination is used. Discontinue and treat supportively if serotonin toxicity or NMS develops.
What other medicines interact with Asenapine?
MediHelp also lists interactions of Asenapine with, for example, Pimozide, Thioridazine, Vandetanib. The full list is on the Asenapine page.
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