Drug interactions
Efavirenz + Saxagliptin-metformin
Severity: Minor
Efavirenz and Saxagliptin-metformin: minor 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
Efavirenz induces CYP3A4 and may reduce saxagliptin exposure, although the active metabolite partly compensates. Loss of glycemic effect is possible but usually small.
What this interaction means in plain words
Efavirenz and Saxagliptin-metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Efavirenz belongs to Anti Virals; Saxagliptin-metformin belongs to Endocrine.
Why it happens
CYP3A4 induction increases saxagliptin metabolism.
What to do
Monitor glycemic control after starting or stopping efavirenz and adjust therapy if control changes.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Saxagliptin-metformin
Other interactions of Efavirenz
- Cobimetinib + Efavirenz Contraindicated
- Dienogest / estradiol valerate + Efavirenz Contraindicated
- Dihydroergotamine intranasal + Efavirenz Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Doravirine + Efavirenz Contraindicated
- Efavirenz + Elbasvir / grazoprevir Contraindicated
Frequently asked questions
Can I take Efavirenz with Saxagliptin-metformin?
MediHelp rates the interaction as minor. Efavirenz and Saxagliptin-metformin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Efavirenz induces CYP3A4 and may reduce saxagliptin exposure, although the active metabolite partly compensates. Loss of glycemic effect is possible but usually small.
How serious is the interaction between Efavirenz and Saxagliptin-metformin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor glycemic control after starting or stopping efavirenz and adjust therapy if control changes.
What other medicines interact with Saxagliptin-metformin?
MediHelp also lists interactions of Saxagliptin-metformin with, for example, Atazanavir, Clozapine, Contrast media. The full list is on the Saxagliptin-metformin page.
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