Metformin · used for type 2 diabetes, prediabetes and PCOS

Looking for an Ayurvedic alternative to metformin?

By the Vaidora editorial team

Updated 10 October 2026 · How we write and review health pages

The short answer

Don't stop metformin without your doctor: blood sugar can rise, and the reason it was prescribed usually still applies. Diet, activity, sleep and weight matter a great deal in insulin resistance and PCOS, and that is where an Ayurvedic consultation can genuinely work alongside your medical care.

Please don't stop or reduce metformin without talking to the doctor who prescribed it. Vaidora's doctors never ask patients to stop a medicine another doctor prescribed.

What metformin does

Metformin is the usual first medicine for type 2 diabetes. It lowers blood sugar mainly by reducing the sugar the liver releases and helping the body respond to insulin.
It is also prescribed for prediabetes and, in some women, for PCOS linked with insulin resistance.

Why people look for an alternative

Stomach upset, nausea or diarrhoea, especially in the first weeks.
Long-term use can lower vitamin B12.
Not wanting to take a medicine every day for years.

What happens if you stop

Blood sugar can rise. In type 2 diabetes, uncontrolled sugar damages the eyes, kidneys, nerves and heart over time, often without symptoms.
Stomach side effects often improve if metformin is taken with food, the dose is increased more slowly, or you switch to a modified-release tablet. Ask your doctor before giving up on it.
If your doctor agrees that lifestyle changes are enough to try reducing it, they will tell you how, and how to monitor your sugar.

Where an Ayurvedic consultation fits

Meal timing and composition, physical activity, sleep and weight are central to managing insulin resistance, prediabetes and PCOS. A written Ayurvedic plan for diet and daily routine works in exactly that space.
Keep your regular blood tests (HbA1c, and B12 if you have taken metformin for a long time) with your own doctor, and share the results at your consultation.

Herbs and interactions to watch

Herbs often taken for blood sugar — gudmar (Gymnema), karela (bitter melon), methi (fenugreek), jamun seed — can add to the effect of diabetes medicines and cause low blood sugar. The risk is highest if you also take insulin or a sulfonylurea such as glimepiride or gliclazide.
If you start any herbal product, check your sugar more often at first, and tell both doctors.
Heavy drinking with metformin raises the risk of a rare but serious side effect, lactic acidosis.

Get medical help now if you have

Signs of low blood sugar — shaking, sweating, confusion, a pounding heart. Take sugar and get help.
Very high sugar — extreme thirst, passing a lot of urine, drowsiness or confusion.
Vomiting, stomach pain, muscle cramps, fast breathing or unusual sleepiness while on metformin. These can be signs of lactic acidosis: call your emergency number.

In an emergency call 112 in India, or your local emergency number.

Questions to take to your prescriber

1What would need to change for me to reduce or stop metformin?
2Would a modified-release tablet help my stomach symptoms?
3Should my B12 be checked?

Common questions

Can I replace metformin for PCOS with Ayurvedic medicine?

Talk to the doctor who prescribed it first. An Ayurvedic consultation can help with the diet, activity, sleep and stress side of PCOS alongside your medical care, but it is not a like-for-like replacement for metformin.

Is it safe to take gudmar or karela with metformin?

Not without telling your doctor. They can add to metformin's effect and, especially with insulin or sulfonylureas, push blood sugar too low. Monitor your sugar if you start anything new.

Sources

1.Metformin — NHS
2.Metformin — MedlinePlus, US National Library of Medicine
3.Diabetes and Dietary Supplements — National Center for Complementary and Integrative Health (NIH)
4.Polycystic ovary syndrome — NHS

General information, not medical advice. It does not replace a consultation with a doctor who has assessed you. Medical disclaimer.