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Metformin is a medication used to treat type 2 diabetes and is used to prevent the development of diabetes in people at high risk for the disease.

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Jordan Christchurch reviewed
"Fast, easy to use and very responsive customer service. Prices are also very competitive."
RJ Layton reviewed
"5 Start service is so much easier than going to my local pharmacy, especially when feeling under the weather."
Bianca Carthright reviewed
"No fuss, and fast delivery. Welzo dispatched my order the same day and it arrived in the morning."
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What is Metformin?

Metformin is a medication that is used to treat diabetes. It belongs to a group of medications called biguanides. 

How does it work?

Metformin works to lower your blood glucose level to as normal as possible. If you are an overweight adult, taking this medication over a long period of time can help to lower the risk of complications associated with diabetes. 

Is Metformin suitable for me?

This medication is used to treat type 2 diabetes when diet and exercise alone have not been able to control the blood glucose levels. It is used primarily in overweight patients.

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Side Effects

All medications can cause potential side effects, below we have listed some potential side effects, however, these do not always occur.

  • Digestion problems
  • Nausea
  • Vomiting
  • Diarrhoea
  • Stomach ache
  • Loss of appetite
  • Changes in taste
  • Decreased or low vitamin B12 levels in the blood
  • A sore and red tongue (glossitis)
  • Pins and needles (paraesthesia)
  • Pale or yellow skin 

Disclaimer: This website does not constitute as medical advice, you should also consult with a doctor before taking medication. If you experience any major reactions to any medication you are taking, you must seek immediate medical attention.


Next Day Delivery Guarantee

All orders placed before 14:00 on weekdays will be delivered the next working day. For the majority of the UK, medication will be dispatched by Royal Mail, Monday to Friday, if ordered before 14:00. Dispatches are sent using Royal Mail's Next-Day Tracked 24-Hour service. We will email you tracking information directly and you should receive your order the day after dispatch.

Our Discreet Packaging Promise

We know that many of our customers turn to us when they need personal medication, preferring to use our online service rather than shopping for the product face to face. That is why our delivery is always discreetly packaged in plain brown boxes or enveloped. You will not have to worry about any content descriptions, and the package will be for your eyes only!


Commonly Used Dosage Guidelines for Metformin.

For children 10 years and over and adolescents:

  • Usual starting dose is 500mg or 850mg taken once a day. The maximum daily dose is 2000mg taken as 2 or 3 divided doses. 

For adults:

  • Usual starting dose is 500mg or 850mg taken two or three times a day. The maximum daily dose is 3000mg taken as 3 divided doses. 

Disclaimer: This website does not provide medical advice. No information listed on this website is intended to be a substitute for professional medical advice, diagnosis or treatment. Always seek the advice of your physician or other qualified health care provider with any questions you may have regarding a medical condition or treatment before undergoing a new health care regimen, and never disregard professional medical advice or delay in seeking it because of something you have read on this website.

Additional Information

Metformin works by helping to restore your body's proper response to the insulin you naturally produce whilst decreasing the amount of sugar that your liver makes and your stomach/intestines absorb.

Type 2 diabetes is a condition in which your body does not use insulin properly, resulting in high blood sugar levels. Over time, this can damage your kidneys, heart, and nerves. Metformin can help prevent these complications by improving your body's response to insulin and decreasing the amount of sugar your liver makes and that your stomach/intestines absorb.

Metformin is usually taken one or two times a day with meals. If you are taking metformin for the treatment of diabetes, it is important to also follow a healthy diet and exercise program as prescribed by your doctor.

If you experience any serious side effects, such as chest pain or shortness of breath, stop taking metformin and call your doctor immediately.

Common side effects of metformin include nausea, diarrhoea, gas, and stomach pain. These side effects are usually temporary and may go away on their own. Serious side effects are rare but can occur. If you experience any serious side effects, stop taking metformin and call your doctor immediately.

Metformin is a prescription medication that is approved for the treatment of type 2 diabetes. It is not habit-forming and does not have a risk of addiction. However, like all medications, metformin can have side effects. If you experience any serious or bothersome side effects, talk to your doctor. They may be able to recommend a different medication or suggest ways to minimise the side effects.

If you are considering taking metformin for the treatment of diabetes, talk to your doctor about the risks and benefits. They can help you decide if metformin is right for you.

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What foods should I avoid while taking Metformin?

There are no specific foods that you need to avoid while taking metformin. However, it is important to eat a healthy diet and to avoid processed foods, sugary drinks, and excessive amounts of alcohol.

What are the signs that Metformin is working?

The most common sign that metformin is working is a decrease in fasting blood sugar levels. Other signs include increased energy levels and improved blood sugar control after meals.

Is this medication suitable for me?

Please get in touch with a doctor if you are unsure what medication is suitable for you. You can also complete our online consultation form to check your eligibility for the product.

How is the medication delivered?

All orders placed before 14:00 from Monday to Friday will be dispatched that day. The orders are sent using 24 Hour Tracked delivery provided by Royal Mail. Items will usually arrive the very next day after the order has been placed. We also provide tracking for your orders to check the status and location of your parcel. All our medication is packaged in plain confidential padded white or brown envelopes. This ensures that your orders are discreet, and the content of the orders will be for your eyes only.

Can Metformin cause weight loss?

It is possible that metformin may cause weight loss, but more research is needed to confirm this. Some people may experience weight loss as a side effect of the medication, but this is usually not significant.

What does Metformin do to your body?

Metformin is an oral medication that helps to control blood sugar levels. It is typically used in conjunction with diet and exercise. Metformin works by decreasing the amount of glucose produced by the liver and by increasing the sensitivity of cells to insulin.

How do I order my medication?

Some products only require an online consultation which approximately takes 1 minute to complete, enabling you to then buy the product. Other products will also require a prescription; in this case, you will need to complete the online consultation, and then one of our partner pharmacy prescribers or doctors will review the online consultation questions and approve the order for delivery if you are eligible to purchase the item.

Can I cancel or return my order?

For non-medicinal products, you are eligible to return the product within 14 days of receipt in the same packaging you received. For medicinal products, you are eligible to cancel the order only until it has been dispatched. From that point forward, you are no longer eligible to return the order.

You have the right to cancel your order for medication up to the point when your medication is dispatched.

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