Drug interactions
Pramipexole + Thiothixene
Severity: Major
Pramipexole and Thiothixene: major 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
Thiothixene is a high-potency D2 antagonist that opposes pramipexole's dopaminergic effect. This can worsen parkinsonian motor symptoms and increase extrapyramidal effects. Pramipexole may also worsen psychosis.
What this interaction means in plain words
Pramipexole and Thiothixene can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Pharmacodynamic antagonism at dopamine D2 receptors.
What to do
Avoid the combination; use clozapine or quetiapine if an antipsychotic is needed in Parkinson disease. Monitor motor function closely if used.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Pramipexole and Thiothixene, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
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 Pramipexole with Thiothixene?
MediHelp rates the interaction as major. Pramipexole and Thiothixene can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Thiothixene is a high-potency D2 antagonist that opposes pramipexole's dopaminergic effect. This can worsen parkinsonian motor symptoms and increase extrapyramidal effects. Pramipexole may also worsen psychosis.
How serious is the interaction between Pramipexole and Thiothixene?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination; use clozapine or quetiapine if an antipsychotic is needed in Parkinson disease. Monitor motor function closely if used.
What other medicines interact with Pramipexole?
MediHelp also lists interactions of Pramipexole with, for example, Amisulpride, Chlorpromazine, Droperidol. The full list is on the Pramipexole page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
