Bromocriptine and Haloperidol Interaction
Drug interaction information between Bromocriptine and Haloperidol.
Bromocriptine and Haloperidol have a documented minor interaction in FDA labeling.
FDA drug labeling documents a minor-severity interaction between Bromocriptine and Haloperidol. Major interactions are generally avoided, moderate ones may need monitoring or a dose adjustment, and minor ones are usually low-risk. This page shows the documented mechanism and guidance. Label-documented interactions are not a complete safety review, so always confirm your own medications with a pharmacist or doctor. Educational information, not medical advice.
How They Interact
Haloperidol blocks the effects of bromocriptine in the body. This prevents the medicine from working correctly.
What To Do
Talk to your doctor about this combination, as haloperidol can make your bromocriptine treatment less effective.
FDA Label Information
Compounds in these categories result in a decreased efficacy of bromocriptine mesylate: phenothiazines, haloperidol, metoclopramide, and pimozide.
Bromocriptine Also Interacts With
- Clarithromycin moderate
- Erythromycin minor
- Pimozide minor
- Dopamine minor
- Metoclopramide minor
Haloperidol Also Interacts With
- Fluoxetine moderate
- Tetrabenazine moderate
- Bupropion minor
- Carbamazepine minor
- Clomipramine minor
Frequently Asked Questions
Can I take Bromocriptine and Haloperidol together?
This is a minor interaction. Talk to your doctor about this combination, as haloperidol can make your bromocriptine treatment less effective.
How serious is the interaction between Bromocriptine and Haloperidol?
This interaction is classified as "minor" severity by the FDA. Minor interactions are unlikely to cause significant problems but should still be mentioned to your healthcare provider.
Why do Bromocriptine and Haloperidol interact?
Haloperidol blocks the effects of bromocriptine in the body. This prevents the medicine from working correctly.
Understanding the Bromocriptine and Haloperidol Interaction
FDA-approved prescribing information for these two drugs flags their combination as a minor-severity interaction. Bromocriptine belongs to the Dopamine Agonist (Diabetes) class and Haloperidol belongs to the Typical Antipsychotic class - two categories that can collide when co-prescribed. The mechanism described in FDA labeling is: Haloperidol blocks the effects of bromocriptine in the body. Severity tiers matter: major flags generally advise avoidance, moderate flags often require monitoring or dose adjustment, and minor flags may only call for awareness.
Context around a specific patient determines real-world impact. Bromocriptine has 7 total documented interactions on file in this dataset, and Haloperidol has 14. Each additional medication compounds the interaction surface, which is why pharmacists run full-profile checks rather than evaluating one pair at a time. FDA-derived guidance for this pair is: Talk to your doctor about this combination, as haloperidol can make your bromocriptine treatment less effective. Timing of doses, renal and hepatic function, age, and other concurrent prescriptions all shape whether a labeled interaction matters clinically.
An interaction flag is not a verdict. A large share of labeled interactions are managed routinely in clinical practice, the fix may be as simple as spacing doses or adding a monitoring test. Others require the prescriber to choose a different medication entirely. This page surfaces FDA-sourced labeling and openFDA data for educational purposes only; it is not medical advice and cannot account for your full clinical picture. Never start, stop, or adjust either Bromocriptine or Haloperidol based on a web page, speak with your prescriber or pharmacist before making any change.
Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. Always consult your healthcare provider about drug interactions.
Read our methodology - how this data is sourced, computed, and verified.