Can I take Metformin and Tramadol together?
Drug interaction guide
Originally published 25 Jan 2026
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Taking these two medicines together may increase the risk of low blood sugar (hypoglycaemia). While tramadol is a painkiller and metformin is for diabetes, tramadol has been linked to drops in blood sugar levels, which could add to the effect of your diabetes medication.
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Why this happens
Tramadol can sometimes lower blood sugar levels by changing how the body uses glucose or by increasing insulin sensitivity. When combined with metformin, this can occasionally lead to blood sugar levels falling too low.
What you should do
You can usually take these together, but you should monitor your blood sugar levels more closely, especially when starting tramadol or changing your dose. Learn to recognise signs of 'hypos' (such as sweating, shaking, hunger, or dizziness). If you experience frequent low blood sugar, contact your doctor as they may need to adjust your medication.
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Using other medicines
Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.
Disclaimer
This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.
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Article history
The information on this page is written and peer reviewed by qualified clinicians.
25 Jan 2026 | Originally published

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