Drug interactions
Palbociclib + Tipranavir
Severity: Major
Palbociclib and Tipranavir: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Tipranavir, usually given with ritonavir, strongly inhibits CYP3A and may raise palbociclib levels. This increases the likelihood of myelosuppression and other dose-related toxicity.
What this interaction means in plain words
Palbociclib and Tipranavir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Palbociclib belongs to Oncology; Tipranavir belongs to Anti Virals.
Why it happens
Inhibition of CYP3A4 by ritonavir-boosted tipranavir reduces palbociclib clearance.
What to do
Avoid the combination. If it cannot be avoided, reduce palbociclib to 75 mg daily and monitor blood counts.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Palbociclib and Tipranavir, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Palbociclib
Other interactions of Tipranavir
- Alfuzosin + Tipranavir Contraindicated
- Amiodarone + Tipranavir Contraindicated
- Atorvastatin + Tipranavir Contraindicated
- Avanafil + Tipranavir Contraindicated
- Cisapride + Tipranavir Contraindicated
- Colchicine + Tipranavir Contraindicated
Frequently asked questions
Can I take Palbociclib with Tipranavir?
MediHelp rates the interaction as major. Palbociclib and Tipranavir can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Tipranavir, usually given with ritonavir, strongly inhibits CYP3A and may raise palbociclib levels. This increases the likelihood of myelosuppression and other dose-related toxicity.
How serious is the interaction between Palbociclib and Tipranavir?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination. If it cannot be avoided, reduce palbociclib to 75 mg daily and monitor blood counts.
What other medicines interact with Palbociclib?
MediHelp also lists interactions of Palbociclib with, for example, Apalutamide, Atazanavir, Carbamazepine. The full list is on the Palbociclib page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
