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Metformin is a medicine used to treat patients with type 2 diabetes and sometimes in women with polycstic ovary syndrome. It may also be referred to by its brand names Bolamyn®, Diagemet®, Glucient®, Glucophage® or Metabet®. 

Although metformin is used to reduce blood glucose levels in patients with diabetes, it does not lower glucose levels in the brain.

NICE do not recommend metformin as a treatment for brain tumours. It is important to speak to your healthcare team before taking any new medications or making changes to your current brain tumour treatment.

Make the right choices for you

Our Step by Step interactive guide outlines what happens following a diagnosis, to answer your questions and help you to understand what to expect.

If you have further questions, need to clarify any of the information on this page, or want to find out more about research and clinical trials, please contact our team:
Support and Information Services
0808 800 0004 Free from landlines and mobiles
Phone lines open Mon-Fri, 09:00-17:00
A member of our Support & Information Team provides support over the phone to somebody affected by a brain tumour diagnosis

Get support

If you need someone to talk to or advice on where to get help, our Support and Information team is available by phone, email or live-chat.

Share your experiences and help create change

By taking part in our Improving Brain Tumour Care surveys and sharing your experiences, you can help us improve treatment and care for everyone affected by a brain tumour.