Drug interactions
Copanlisib + Lorlatinib
Severity: Moderate
Copanlisib and Lorlatinib: moderate 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
Copanlisib is cleared mainly by CYP3A4, so induction by lorlatinib may lower copanlisib exposure and reduce its efficacy.
What this interaction means in plain words
Copanlisib and Lorlatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Lorlatinib induces CYP3A4, increasing copanlisib metabolism.
What to do
Monitor for diminished tumor response to copanlisib. Consider an alternative regimen if loss of efficacy is suspected.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Copanlisib and Lorlatinib, 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 7 days on the web. No card needed.
Other interactions of Lorlatinib
- Amobarbital + Lorlatinib Contraindicated
- Apalutamide + Lorlatinib Contraindicated
- Butabarbital + Lorlatinib Contraindicated
- Carbamazepine + Lorlatinib Contraindicated
- Enzalutamide + Lorlatinib Contraindicated
- Fosphenytoin + Lorlatinib Contraindicated
Frequently asked questions
Can I take Copanlisib with Lorlatinib?
MediHelp rates the interaction as moderate. Copanlisib and Lorlatinib can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Copanlisib is cleared mainly by CYP3A4, so induction by lorlatinib may lower copanlisib exposure and reduce its efficacy.
How serious is the interaction between Copanlisib and Lorlatinib?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for diminished tumor response to copanlisib. Consider an alternative regimen if loss of efficacy is suspected.
What other medicines interact with Lorlatinib?
MediHelp also lists interactions of Lorlatinib with, for example, Amobarbital, Apalutamide, Butabarbital. The full list is on the Lorlatinib 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.
