Cariprazine and Mitotane: 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
Mitotane
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.
Mitotane is a strong "speed-up" signal for a liver enzyme called CYP3A4, and your body uses that same enzyme to both create and break down the active pieces of cariprazine (Vraylar). Because cariprazine leans on that enzyme in a complicated way, no one can say for sure whether mitotane would leave you with too little cariprazine (so it may not control your symptoms) or shift its balance in another way.
Since the outcome is uncertain, the two are generally not recommended together. Please don't stop or change either medicine on your own. Talk with your pharmacist or doctor, who can look at the whole picture and manage this safely.
Mechanism: Mitotane is a potent CYP3A4 inducer; cariprazine and its active metabolites (desmethyl- and didesmethyl-cariprazine) are formed and cleared via CYP3A4.
- Direction/magnitude: Net effect on cariprazine exposure is unpredictable. Because CYP3A4 governs both formation and elimination of active moieties, induction may not simply reduce activity; overall impact has not been formally studied.
- Evidence: Theoretical; severity major.
- Onset: Unspecified (enzyme induction typically develops over 1 to 2 weeks and mitotane's effect is prolonged).
- Management: Combination not recommended. If unavoidable, individualize dosing and monitor closely for loss of efficacy or altered response.
What happens
Effects on the cariprazine exposure has not been evaluated and the net effect is unclear
Interaction Deep Dive
Giving cariprazine (a substrate of CYP3A4) together with a CYP3A4 inducer is not advised. The enzyme CYP3A4 governs both the generation and the clearance of cariprazine's active metabolites. Because the influence of CYP3A4 inducers on cariprazine exposure has not been studied, the overall net effect remains uncertain1.
Why it happens (mechanism)
Induction of CYP3A4-mediated metabolism of cariprazine
How to manage this interaction
Because mitotane speeds up the enzyme that handles cariprazine, this combination is generally not recommended, and the overall effect is hard to predict.
- Keep taking both as prescribed unless your care team tells you otherwise. Do not stop or adjust on your own.
- Your team may watch you more closely for signs that your symptoms are less controlled or that the medicine is acting differently.
- Your cariprazine dose may need to be individualized by your prescriber, or an alternative medication may be considered.
- Ask your pharmacist or doctor about this combination and mention any new or returning symptoms.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Cariprazine and Mitotane together?
Mitotane can speed up how your body processes cariprazine, and the net result is unpredictable, so this pairing is generally not recommended; let your care team decide on dosing, monitoring, or an alternative. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Cariprazine and Mitotane interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Cariprazine and Mitotane interaction managed?
Because mitotane speeds up the enzyme that handles cariprazine, this combination is generally not recommended, and the overall effect is hard to predict. Keep taking both as prescribed unless your care team tells you otherwise. Do not stop or adjust on your own. Your team may watch you more closely for signs that your symptoms are less controlled or that the medicine is acting differently. Your ca… 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 Cariprazine or Mitotane 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: VRAYLAR(R) oral capsules, cariprazine oral capsules. AbbVie Inc. (per FDA), North Chicago, IL, 2024. DailyMed
Keep reading about Mitotane
Keep reading about Cariprazine
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major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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