Drug interactions
Glyburide + Lumacaftor / ivacaftor
Severity: Moderate
Glyburide and Lumacaftor / ivacaftor: 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
Lumacaftor is an enzyme inducer and may lower glyburide exposure. Glycemic control may worsen.
What this interaction means in plain words
Glyburide and Lumacaftor / ivacaftor 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
Lumacaftor induces CYP2C9 and CYP3A4, increasing glyburide metabolism.
What to do
Monitor blood glucose and HbA1c after starting or stopping lumacaftor/ivacaftor. Adjust the glyburide dose or switch agent if control worsens.
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 Glyburide and Lumacaftor / ivacaftor, 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 Glyburide
- Bosentan + Glyburide Contraindicated
- Cholic acid + Glyburide Major
- Ciprofloxacin + Glyburide Major
- Clarithromycin + Glyburide Major
- Fluconazole + Glyburide Major
- Glyburide + Insulin degludec-liraglutide Major
Frequently asked questions
Can I take Glyburide with Lumacaftor / ivacaftor?
MediHelp rates the interaction as moderate. Glyburide and Lumacaftor / ivacaftor 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. Lumacaftor is an enzyme inducer and may lower glyburide exposure. Glycemic control may worsen.
How serious is the interaction between Glyburide and Lumacaftor / ivacaftor?
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 blood glucose and HbA1c after starting or stopping lumacaftor/ivacaftor. Adjust the glyburide dose or switch agent if control worsens.
What other medicines interact with Glyburide?
MediHelp also lists interactions of Glyburide with, for example, Bosentan, Cholic acid, Ciprofloxacin. The full list is on the Glyburide 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.
