Can I take 12.5mg and Metformin together?
Drug interaction guide
Originally published 25 Jan 2026
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There is no known interaction between sildenafil (the active ingredient in Viagra) and metformin. Both medications are commonly prescribed together for people with type 2 diabetes.
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Why this happens
These drugs work in different ways and are processed by different systems in the body. Metformin helps control blood sugar levels, while sildenafil works on blood vessels to help with erectile dysfunction. They do not interfere with how the other is absorbed, used, or removed from the body.
What you should do
You can safely take these two medications together. However, because diabetes can affect your heart health and blood pressure, you should always ensure your doctor knows you are using sildenafil, as it can occasionally cause a slight drop in blood pressure.
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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.
Clause de non-responsabilité
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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Historique de l'article
Les informations contenues dans cette page sont rédigées et évaluées par des cliniciens qualifiés.
25 janvier 2026 | Publié à l'origine
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