Drug interactions
Ketoconazole + Nateglinide
Severity: Moderate
Ketoconazole and Nateglinide: 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
Ketoconazole may increase nateglinide exposure and enhance its insulin-secreting effect, increasing the risk of hypoglycemia. The effect is generally small to moderate.
What this interaction means in plain words
Ketoconazole and Nateglinide 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.
Ketoconazole belongs to Anti Fungals; Nateglinide belongs to Endocrine.
Why it happens
Ketoconazole inhibits CYP2C9 and CYP3A4, the enzymes that metabolize nateglinide.
What to do
Monitor blood glucose when starting or stopping ketoconazole, and reduce the nateglinide dose if hypoglycemia occurs.
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 Ketoconazole and Nateglinide, 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 Ketoconazole
- Alfuzosin + Ketoconazole Contraindicated
- Alprazolam + Ketoconazole Contraindicated
- Avanafil + Ketoconazole Contraindicated
- Conivaptan + Ketoconazole Contraindicated
- Dihydroergotamine intranasal + Ketoconazole Contraindicated
- Dihydroergotamine + Ketoconazole Contraindicated
Other interactions of Nateglinide
- Albiglutide + Nateglinide Moderate
- Alogliptin-metformin + Nateglinide Moderate
- Alogliptin-pioglitazone + Nateglinide Moderate
- Alogliptin + Nateglinide Moderate
- Alpelisib + Nateglinide Moderate
- Amiodarone + Nateglinide Moderate
Frequently asked questions
Can I take Ketoconazole with Nateglinide?
MediHelp rates the interaction as moderate. Ketoconazole and Nateglinide 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. Ketoconazole may increase nateglinide exposure and enhance its insulin-secreting effect, increasing the risk of hypoglycemia. The effect is generally small to moderate.
How serious is the interaction between Ketoconazole and Nateglinide?
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 when starting or stopping ketoconazole, and reduce the nateglinide dose if hypoglycemia occurs.
What other medicines interact with Ketoconazole?
MediHelp also lists interactions of Ketoconazole with, for example, Alfuzosin, Alprazolam, Avanafil. The full list is on the Ketoconazole 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.
