Drug interactions
Methylene blue + Saxagliptin-metformin
Severity: Moderate
Methylene blue and Saxagliptin-metformin: 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
Methylene blue may inhibit renal transporters (OCT2, MATE) and raise metformin levels, increasing the risk of gastrointestinal effects and potentially lactic acidosis. Methylene blue is usually given short-term, which limits exposure.
What this interaction means in plain words
Methylene blue and Saxagliptin-metformin 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
Methylene blue inhibits OCT2, MATE1 and MATE2-K, reducing renal metformin elimination.
What to do
Monitor for signs of lactic acidosis and renal function; consider holding metformin around methylene blue use in patients with renal impairment.
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?
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Other interactions of Saxagliptin-metformin
Frequently asked questions
Can I take Methylene blue with Saxagliptin-metformin?
MediHelp rates the interaction as moderate. Methylene blue and Saxagliptin-metformin 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. Methylene blue may inhibit renal transporters (OCT2, MATE) and raise metformin levels, increasing the risk of gastrointestinal effects and potentially lactic acidosis. Methylene blue is usually given short-term, which limits exposure.
How serious is the interaction between Methylene blue and Saxagliptin-metformin?
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 for signs of lactic acidosis and renal function; consider holding metformin around methylene blue use in patients with renal impairment.
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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