Drug interactions
Fosamprenavir + Saxagliptin
Severity: Moderate
Fosamprenavir and Saxagliptin: 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
Fosamprenavir (amprenavir), particularly with ritonavir, inhibits CYP3A4 and may increase saxagliptin exposure.
What this interaction means in plain words
Fosamprenavir and Saxagliptin 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
Inhibition of CYP3A4 metabolism of saxagliptin.
What to do
Limit saxagliptin to 2.5 mg daily and monitor glucose and adverse effects.
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 Fosamprenavir and Saxagliptin, 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 Saxagliptin
- Albiglutide + Saxagliptin Moderate
- Amlodipine-benazepril + Saxagliptin Moderate
- Aripiprazole + Saxagliptin Moderate
- Asenapine + Saxagliptin Moderate
- Atazanavir + Saxagliptin Moderate
- Benazepril + Saxagliptin Moderate
Frequently asked questions
Can I take Fosamprenavir with Saxagliptin?
MediHelp rates the interaction as moderate. Fosamprenavir and Saxagliptin 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. Fosamprenavir (amprenavir), particularly with ritonavir, inhibits CYP3A4 and may increase saxagliptin exposure.
How serious is the interaction between Fosamprenavir and Saxagliptin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Limit saxagliptin to 2.5 mg daily and monitor glucose and adverse effects.
What other medicines interact with Saxagliptin?
MediHelp also lists interactions of Saxagliptin with, for example, Albiglutide, Amlodipine-benazepril, Aripiprazole. The full list is on the Saxagliptin 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.
