Drug interactions
Olanzapine + Sumatriptan intranasal
Severity: Minor
Olanzapine and Sumatriptan intranasal: minor 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
Triptans combined with antipsychotics have a theoretical risk of serotonin syndrome, and altered dopaminergic signalling could in principle favor neuroleptic malignant syndrome. Documented cases with olanzapine are rare.
What this interaction means in plain words
Olanzapine and Sumatriptan intranasal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible additive serotonergic effects, as olanzapine has 5-HT2A antagonism and sumatriptan is a 5-HT1B/1D agonist; the mechanism is largely theoretical.
What to do
Co-administration is generally acceptable; counsel the patient to report agitation, fever, tremor, rigidity or diarrhea, and evaluate promptly for serotonin toxicity if these appear.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Olanzapine
Frequently asked questions
Can I take Olanzapine with Sumatriptan intranasal?
MediHelp rates the interaction as minor. Olanzapine and Sumatriptan intranasal have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Triptans combined with antipsychotics have a theoretical risk of serotonin syndrome, and altered dopaminergic signalling could in principle favor neuroleptic malignant syndrome. Documented cases with olanzapine are rare.
How serious is the interaction between Olanzapine and Sumatriptan intranasal?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Co-administration is generally acceptable; counsel the patient to report agitation, fever, tremor, rigidity or diarrhea, and evaluate promptly for serotonin toxicity if these appear.
What other medicines interact with Olanzapine?
MediHelp also lists interactions of Olanzapine with, for example, Amisulpride, Amoxapine, Apomorphine. The full list is on the Olanzapine page.
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