Metformin to Lose Weight: Side Effects, Considerations and Frequently Asked Questions

What is Metformin (Dimethylbiguanide)?

You must first know what it is, what it does, all the necessary information about this medicine to lose weight, including whether it is true that you lose weight with Metformin! It is important if you want to start with this treatment.

Metformin biguanide hydrochloride originated in France, and comes from the grass of the lilac. It is a drug indicated for the treatment of diabetes mellitus (type 2). However, being antihyperglycemic and due to its effects on the body, it has also been recommended as a medication to lose weight, since a great weight loss was observed in diabetic patients.

Medical indications: it is recommended for diabetes, polycystic ovary syndrome (difficulty getting pregnant), cancer and obesity.

Can I lose weight with Metformin?

Yes, with the use of Metformin you  can lose weight and this happens due to its action in the body since it stabilizes the blood glucose level, and also helps the hormone insulin to act on a regular basis, and here comes the weightloss. The more insulin in the blood, the greater the fat formation and vice versa. This is the reason why those who take metformin hydrochloride really slim!

Side effects

No side effects of great concern were found, which makes it one of the most recommended weight loss medications in many countries of the world. What is observed in some cases are pains due to abdominal and gastrointestinal disorders (nausea, diarrhea). Most people who use metformin to lose weight end the treatment without developing reactions or other problems.


This medication is of ethical imperative (sale only with medical formula) and can be found in drugstores and pharmacies. The trade name varies as can be seen below:

Metformin 850mg Generic Sandoz: developed by the Sandoz laboratory, it is sold in its generic form and is intended for use in adults. Each box contains 30 coated tablets and the sale is made only with a prescription. They say that Metformin 850 loses weight in a matter of weeks. But it should not be taken beyond the dose prescribed by the doctor.

Glifage MerckGlifage Referential 500 mg. This is the reference medicine. Also available in 1g (use of children) and 850 mg is made by the network of Merck laboratories. Once again the boxes come with thirty capsules and as you can see in the red band, you can not buy Glifage for weight loss without a prescription.

Important: if you find it available on the Internet and without this requirement, be wary of the source.

Metformin Hydrochloride 500 mg generic or metformin hydrochloride 500 mg: comes in blue containers with yellow and red bands respectively, indicating that it is a generic medicine for sale only under medical formula.

Formyn 850 mg and 1 g of metformin is similar to 850 mg multilab. Keep in mind that the boxes are almost white with a gray side and also have the same characteristics of ethical medications.

Other names available are: Dimefor, Daforin, Formin, Glucoformin, Diaformin, Metformix.

Where to buy it

Beyond pharmaceutical distribution, the sale is made in pharmacies or drugstores, including online pharmacies. But there is a detail that you should keep in mind when buying Metformin: the price, since it varies a lot and the medical prescription is necessary.

Frequently asked questions

Metformin in how much time does it help to lose weight? This will depend on several factors, among which we can highlight the degree of obesity. Some patients lose weight in a matter of a week, however, the reduction of fat in this period is low. It is also recommended to practice some physical activity and take a balanced diet which will help you get better results.