Drug interactions
Lorcaserin + Loxapine
Severity: Moderate
Lorcaserin 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
Lorcaserin is a serotonin 5-HT2C agonist. With an antipsychotic such as loxapine there is a theoretical risk of serotonin syndrome and neuroleptic malignant syndrome. Lorcaserin is no longer marketed in many regions.
What this interaction means in plain words
Lorcaserin 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
Possible additive serotonergic and dopaminergic effects; mechanism is not well established.
What to do
Monitor for agitation, hyperthermia, rigidity, tremor and autonomic instability. Discontinue the agents and treat if serotonin syndrome 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 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 Lorcaserin with Loxapine?
MediHelp rates the interaction as moderate. Lorcaserin 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. Lorcaserin is a serotonin 5-HT2C agonist. With an antipsychotic such as loxapine there is a theoretical risk of serotonin syndrome and neuroleptic malignant syndrome. Lorcaserin is no longer marketed in many regions.
How serious is the interaction between Lorcaserin 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: Monitor for agitation, hyperthermia, rigidity, tremor and autonomic instability. Discontinue the agents and treat if serotonin syndrome or NMS develops.
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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