Abrocitinib and Tirofiban: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 10, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Abrocitinib
Tirofiban
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.
Taking these two together can raise your risk of bleeding. Abrocitinib (Cibinqo) is a medicine for eczema that can lower your blood platelets, the tiny cells that help you stop bleeding. Tirofiban is a strong blood thinner (an antiplatelet drug) given in the hospital to keep platelets from clumping. Put them together and both are working against your body's ability to form clots, so bleeding becomes more likely.
In fact, combining abrocitinib with antiplatelet drugs like tirofiban (other than low-dose aspirin) during the first 3 months of abrocitinib treatment is not recommended at all. Please don't change anything on your own, but do talk with your doctor or pharmacist so your care team can sort out the safest plan.
Effect: Additive impairment of hemostasis, increasing bleeding risk.
- Mechanism: Pharmacodynamic (not PK). Abrocitinib can reduce platelet counts; tirofiban is a GPIIb/IIIa antagonist that inhibits platelet aggregation. Combined effect compounds bleeding risk. Neither is a prodrug relevant here.
- Direction/magnitude: Additive antiplatelet/hemostatic effect; magnitude not quantified.
- Onset: Unspecified; clinically relevant during the first 3 months of abrocitinib therapy.
- Evidence: Theoretical.
- Management: Coadministration is contraindicated during the first 3 months of abrocitinib treatment, except low-dose aspirin (=81 mg/day). Monitor platelets and for bleeding; select an alternative where possible.
What happens
Increased risk of bleeding
Interaction Deep Dive
During the initial 3-month period of abrocitinib therapy, its combined use with antiplatelet drugs is contraindicated because of a heightened bleeding risk, with the exception of low-dose aspirin (81 mg per day or less)1.
Why it happens (mechanism)
Additive effects on hemostasis
How to manage this interaction
What your care team typically does:
- Because this combination is flagged as contraindicated during the first 3 months of abrocitinib treatment, your team will usually avoid using tirofiban with abrocitinib during that window and may choose a different approach.
- They may check your platelet counts and watch closely for any signs of bleeding.
What you should do:
- Keep taking your medications only as prescribed, and do not start or stop anything on your own.
- Tell every prescriber and your pharmacist that you take abrocitinib, especially before any hospital or heart procedure where tirofiban might be used.
- Report unusual bruising, bleeding gums, nosebleeds, blood in urine or stool, or bleeding that won't stop right away.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Abrocitinib and Tirofiban together?
Combining abrocitinib with the antiplatelet drug tirofiban raises bleeding risk and is considered contraindicated during the first 3 months of abrocitinib therapy, so make sure every provider knows you take abrocitinib. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Abrocitinib and Tirofiban interaction?
It is rated contraindicated. These should generally not be used together.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How is the Abrocitinib and Tirofiban interaction managed?
What your care team typically does: Because this combination is flagged as contraindicated during the first 3 months of abrocitinib treatment, your team will usually avoid using tirofiban with abrocitinib during that window and may choose a different approach. They may check your platelet counts and watch closely for any signs of bleeding. What you should do: Keep taking your medications only as p… 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 Abrocitinib or Tirofiban 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: CIBINQO(TM) oral tablets, abrocitinib oral tablets. Pfizer Labs (per FDA), New York, NY, 2022. DailyMed
Keep reading about Abrocitinib
Keep reading about Tirofiban
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