Drug interactions
Olanzapine + Pramipexole
Severity: Moderate
Olanzapine and Pramipexole: 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
Olanzapine blocks dopamine D2 receptors and may oppose the effect of pramipexole. This can worsen motor symptoms in Parkinson disease, and pramipexole can in turn aggravate psychosis.
What this interaction means in plain words
Olanzapine and Pramipexole 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.
Olanzapine belongs to Central Nervous System; Pramipexole belongs to Cardiovascular.
Why it happens
Pharmacodynamic antagonism at dopamine D2-type receptors.
What to do
Avoid olanzapine in Parkinson disease where possible; prefer quetiapine or clozapine. If used together, monitor motor function and psychiatric symptoms.
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 Olanzapine
Other interactions of Pramipexole
- Amisulpride + Pramipexole Contraindicated
- Chlorpromazine + Pramipexole Major
- Droperidol + Pramipexole Major
- Fluphenazine + Pramipexole Major
- Haloperidol + Pramipexole Major
- Iloperidone + Pramipexole Major
Frequently asked questions
Can I take Olanzapine with Pramipexole?
MediHelp rates the interaction as moderate. Olanzapine and Pramipexole 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. Olanzapine blocks dopamine D2 receptors and may oppose the effect of pramipexole. This can worsen motor symptoms in Parkinson disease, and pramipexole can in turn aggravate psychosis.
How serious is the interaction between Olanzapine and Pramipexole?
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 olanzapine in Parkinson disease where possible; prefer quetiapine or clozapine. If used together, monitor motor function and psychiatric symptoms.
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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