Drug interactions
Leniolisib + Rifampicin
Severity: Major
Leniolisib and Rifampicin: 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
Rifampicin is expected to reduce leniolisib concentrations and may cause loss of efficacy in activated PI3K delta syndrome.
What this interaction means in plain words
Leniolisib and Rifampicin 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.
Leniolisib belongs to Miscellaneous; Rifampicin belongs to Anti Bacterial.
Why it happens
CYP3A4 induction by rifampicin increases leniolisib metabolism.
What to do
Avoid the combination and choose an alternative antimycobacterial if possible.
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?
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Other interactions of Leniolisib
Other interactions of Rifampicin
- Cabotegravir + Rifampicin Contraindicated
- Delamanid + Rifampicin Contraindicated
- Doravirine + Rifampicin Contraindicated
- Ensitrelvir + Rifampicin Contraindicated
- Fostemsavir + Rifampicin Contraindicated
- Isavuconazole + Rifampicin Contraindicated
Frequently asked questions
Can I take Leniolisib with Rifampicin?
MediHelp rates the interaction as major. Leniolisib and Rifampicin 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. Rifampicin is expected to reduce leniolisib concentrations and may cause loss of efficacy in activated PI3K delta syndrome.
How serious is the interaction between Leniolisib and Rifampicin?
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 and choose an alternative antimycobacterial if possible.
What other medicines interact with Leniolisib?
MediHelp also lists interactions of Leniolisib with, for example, Amobarbital, Apalutamide, Carbamazepine. The full list is on the Leniolisib page.
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