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Metformin Mouth: Is Your Diabetes Drug Causing Strange Tastes?
18 Sep
Summary
- Metformin, a common diabetes drug, can cause a metallic taste.
- Over 26 million metformin prescriptions were issued in England last year.
- Consult a doctor or pharmacist before stopping metformin due to side effects.
A common side effect of metformin, a widely prescribed diabetes medication, is a metallic taste in the mouth. This symptom, sometimes described as tasting like a coin, is recognized in UK prescribing information and by organizations like Diabetes UK. In England, pharmacists dispensed over 26 million metformin prescriptions in 2024, highlighting its importance as a first-line treatment for many.
While this metallic taste is a known side effect, it is crucial for patients to understand that other factors can also cause it. These include dental issues, colds, indigestion, pregnancy, or other medications. Therefore, patients should consider the timing of the taste change in relation to starting or altering their metformin treatment.
Experts advise against discontinuing metformin solely due to taste changes. Healthcare professionals recommend consulting a pharmacist or doctor if side effects are bothersome or persistent. Many common side effects of metformin tend to ease as the body adjusts, though some may last longer. Sugar-free chewing gum can be a helpful aid for managing the metallic taste.
