Cariprazine and Sarilumab: 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
Cariprazine
Sarilumab
No brand names on record
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.
Here's the situation. Cariprazine (Vraylar) is broken down by a liver enzyme called CYP3A4, and that same enzyme also creates cariprazine's long-lasting active forms that do a lot of the work. Sarilumab may speed that enzyme up. When the enzyme runs faster, it can change how much active drug ends up in your body, and honestly the exact result hasn't been measured, so we can't say for sure whether Vraylar would work better, worse, or about the same.
The good news: this is manageable. Please don't stop or change either medicine on your own. Just let your prescriber or pharmacist know you take both so they can watch how you're doing and adjust if needed.
Mechanism: Cariprazine is a CYP3A4 substrate; CYP3A4 governs both formation and elimination of its long-acting active metabolites (DCAR, DDCAR). Sarilumab, via IL-6 signaling suppression, can normalize (upregulate) CYP enzymes including CYP3A4, acting functionally as an inducer. Neither agent requires this discussion of prodrug activation to change direction here.
- Direction: net effect on cariprazine exposure is unpredictable because 3A4 both makes and clears the active moieties.
- Magnitude/onset: not quantified; unspecified onset.
- Evidence: theoretical.
- Management: combination not recommended; if used, monitor clinical response and tolerability closely and individualize dosing.
What happens
Effects on the cariprazine exposure has not been evaluated and the net effect is unclear
Interaction Deep Dive
Using cariprazine (a substrate of CYP3A4) together with a CYP3A4 inducer is not advised. The active metabolites of cariprazine are both generated and cleared through CYP3A4. How CYP3A4 inducers influence cariprazine exposure has not been studied, so the overall effect remains uncertain1.
Why it happens (mechanism)
Induction of CYP3A4-mediated metabolism of cariprazine
How to manage this interaction
What your care team may do:
- The manufacturer lists this combination as not recommended, so your team may consider an alternative or watch you more closely if both are needed.
- Because the net effect on cariprazine is uncertain, they may monitor your response, watching for either return of symptoms or new side effects, and your dose may be adjusted and individualized.
What you should do:
- Keep taking both exactly as prescribed unless told otherwise.
- Tell your pharmacist or prescriber you take both, and report any mood, behavior, or movement changes.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Cariprazine and Sarilumab together?
Combining cariprazine (Vraylar) with sarilumab is not recommended because sarilumab may speed up the enzyme that handles cariprazine, and the net effect is unpredictable; let your care team know so they can monitor you and adjust as needed. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Cariprazine and Sarilumab 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 Sarilumab interaction managed?
What your care team may do: The manufacturer lists this combination as not recommended, so your team may consider an alternative or watch you more closely if both are needed. Because the net effect on cariprazine is uncertain, they may monitor your response, watching for either return of symptoms or new side effects, and your dose may be adjusted and individualized. What you should do: Keep taking… 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 Sarilumab 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 Cariprazine
Keep reading about Sarilumab
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