Cabergoline and Cariprazine: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 16, 2026 · Source data updated Jul 16, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Cabergoline
Cariprazine
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
These two medicines work against each other. Cabergoline (Dostinex) works by turning on dopamine receptors in your body. Cariprazine (Vraylar) does the opposite at some of those same receptors, it blocks and calms them down. So when you take them together, cariprazine can cancel out some of what cabergoline is trying to do, making cabergoline work less well.
The good news is your care team can manage this. Don't stop either medicine on your own. Instead, let your pharmacist or doctor know you take both, so they can look at your goals for each drug and adjust or monitor as needed.
Mechanism: Pharmacodynamic antagonism at dopamine D2 receptors. Cabergoline is a D2 agonist; cariprazine is a D2/D3 partial agonist with functional antagonist activity, opposing cabergoline's action.
- Direction: Reduced efficacy of cabergoline (and potential blunting of cariprazine's intended effect).
- Onset: Rapid.
- Evidence: Theoretical; based on opposing receptor pharmacology, not clinical outcome data.
- Magnitude: Not quantified.
Management: Concomitant use generally not recommended. If both are clinically necessary, reassess therapeutic goals; monitor for loss of cabergoline effect (e.g., prolactin, symptom control) and individualize therapy. Consider whether an alternative is appropriate per the prescriber.
What happens
Reduced efficacy of cabergoline and reduced efficacy of dopamine-2 receptors
Interaction Deep Dive
Using cabergoline together with a dopamine-2 receptor antagonist is advised against, because doing so may diminish the effectiveness of both cabergoline and the dopamine-2 receptors1.
Why it happens (mechanism)
Pharmacologic antagonism effect on dopamine-2 receptors
How to manage this interaction
The main concern is that cariprazine can work against cabergoline, so cabergoline may not do its job as well.
- Keep taking both exactly as prescribed unless your doctor tells you otherwise.
- Tell your pharmacist or prescriber that you take both, since using them together is generally not recommended.
- Your care team may monitor you more closely to see whether cabergoline is still working, and your doses may need to be adjusted and individualized by your team.
- Ask whether an alternative medicine might fit your situation better.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Cabergoline and Cariprazine together?
Cariprazine can block cabergoline's effect at dopamine receptors, making cabergoline less effective, so using them together is generally not recommended. Keep taking both as prescribed and talk with your pharmacist or doctor about your options. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Cabergoline and Cariprazine interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "rapid". Effects can appear quickly, often within about 24 hours of combining the drugs.
How is the Cabergoline and Cariprazine interaction managed?
The main concern is that cariprazine can work against cabergoline, so cabergoline may not do its job as well. Keep taking both exactly as prescribed unless your doctor tells you otherwise. Tell your pharmacist or prescriber that you take both, since using them together is generally not recommended. Your care team may monitor you more closely to see whether cabergoline is still working, and your do… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
- Does my dose of Cabergoline or Cariprazine need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there a safer alternative to one of these medications for me?
References (1)
- Product Information: DOSTINEX oral tablets, cabergoline oral tablets. Pharmacia & Upjohn Company (per FDA), New York, NY, 2025. DailyMed
Keep reading about Cabergoline
Keep reading about Cariprazine
These medications also interact with supplements
Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
Check another combination
Our instant two-drug interaction checker is almost here.
Still have questions about this combination?
Every question gets a real answer from a licensed pharmacist — free, and usually within a day.
Ask the pharmacist