Home / Metformin


Diabetes | Active ingredient(s): Metformin hydrochloride | Manufacturer: Various


Package size

  • Review by a qualified doctor
  • Including prescription
  • Next-day delivery included

How to buy Metformin online?

You can buy Metformin online to treat Type 2 diabetes without a doctor's appointment or prescription, saving time and effort spent ordering and attending an appointment in-person. Firstly, you must complete a quick five-minute consultation with all the relevant medical questions essential for determining whether Metformin is right for you. A prescription will be created and sent straight to the pharmacy. Your Metformin package will be triple-checked and dispensed from our UK registered pharmacy for same day dispatch. All of our delivery options are free and you can track each order using its unique tracking code.Orders made before 4.30pm will arrive the next day.

What is Metformin?

Metformin is the most widely used and effective prescription treatment available for type 2 diabetes, which works in three separate ways to help regulate the blood sugar levels of people suffering from this condition. Management using medication for type 2 diabetes such as Metformin are essential in helping prevent the risk of any further complications and assists in maintaining a healthy lifestyle.

Metformin has been used as a treatment to control blood sugar levels in people with type 2 diabetes for almost 40 years and as such is very well researched and widely used.

Metformin has been used as a treatment for a variety of other conditions. Your doctor may prescribe this medication to help manage polycystic ovaries and improve the chances of conception. It has also been prescribed as a treatment for weight loss for people who have experienced increased weight due to complications arising from diabetes. You will need to speak to your doctor before considering using Metformin for any of these reasons.

How does Metformin work?

The main function of insulin is to regulate the level of sugar in the blood. Type 2 diabetics are not able to produce sufficient amounts of insulin. When the body does not produce enough of this hormone, the blood sugar levels can become high. The cells of the body in people with diabetes can also develop a resistance to the low levels of insulin that are in the blood. The combination of these two things is a condition that is referred to as type 2 diabetes. Metformin can help people manage this condition in a simple and effective way.

Metformin works in a number of different ways to reduce the blood sugar levels and to help effectively manage type 2 diabetes:

  • Firstly, it helps to lower the amount of glucose that is absorbed from food by the intestines.
  • Secondly, it controls the amount of glucose that is produced by the liver and released into the blood.
  • Finally, it reduces the body's resistance to insulin and helps the body to respond more effectively to the insulin that is produced, even if the count is quite low.

How to take Metformin

This medication comes in a 500mg and 850mg dosage. A patient can be recommended to take these doses two or three times a day, depending on the severity of their diabetes. This will be explained clearly after your consultation and every package comes with the patient leaflet to refer to further.

Alternatively, Metformin may be prescribed as a modified-release (MR) tablet (available as 500mg, 750mg and 1000mg). The main difference is that rather than taking the standard version 2-3 times a day, you only need to take the MR version once daily. The doctor will determine which version is most suitable for you.

  • You should take each tablet with a glass of water and it should preferably be taken with food.
  • You should follow the exact instructions from your doctor when using this medication and you should not exceed the maximum daily dose (standard 3,000 mg/ modified-release 2,000 mg) unless specifically told to do so by your doctor.

Using Metformin for type 2 diabetes is on the basis that you undergo regular blood tests to check your blood sugar levels and to monitor the effectiveness of the treatment.

Your dosage requirements are dependent on the individual circumstances of your condition and this is subject to change. Regular blood tests are essential in ensuring that your treatment is as effective as possible.

When you buy Metformin online, you will be provided with a detailed patient leaflet, which will have full instructions on how and when to use this medication to treat type 2 diabetes. You must read this patient leaflet in its entirety before beginning your course of Metformin. You can download it at any point from our website.

Metformin side effects

Metformin is the most common treatment for type 2 diabetes that has been used for over 40 years. It is very well tolerated with a minimal risk of side effects.

When these occur, they can include headaches, muscle pain, mild nausea, vomiting, and diarrhoea and stomach pain. These side effects should pass within a few days and aren't generally a cause for concern.

If you experience anything that causes you concern then you should immediately consult with your doctor or contact our customer service team. The patient leaflet that we provide when you buy Metformin online at 121doc will have the full list of possible side effects for this medication.

Metformin Precautions

You can buy Metformin online at 121doc if you are over the age of 18 and are a diagnosed type 2 diabetic. This medication is normally very safe, which is the reason it is so widely recommended, but there are some groups who may not be suitable for this medication or who may be required to take a lower dosage.

You may not be suitable for Metformin if you have:

  • Decreased kidney or liver function
  • Recently had a heart attack
  • Any blood related conditions
  • Severe breathing difficulties
  • A persistent drinking habit (alcohol)

If any of these applies to you, please consult with your doctor before starting a course of Metformin.

You will need to have been recommended this treatment by your doctor for us to be able to provide you it online. When you buy Metformin online at 121doc, you will be required to complete an online medical questionnaire, which our doctors will use when deciding whether this is the right treatment for you. Please ensure that you provide all the necessary information in regards to your medical history and any medications that you are currently taking. If you require assistance completing this medical form, please do not hesitate to contact our dedicated customer care team who will be more than happy to help.

Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.


What is included in the online consultation?
Will a doctor review my consultation?
What happens after I submit my order?
Is the price all-inclusive?
Can I place more than one order at a time?
What are my delivery options?
Is it safe to buy prescription medication online?
How do I know which treatment is best for me?
Is this service discreet?
What is included in the online consultation?

Our consultations include general questions about your health (e.g. blood pressure levels, current and past conditions), as well as specific questions related to your selected treatment. We will also request relevant personal information to complete payment and delivery.

All questions are necessary, and your answers and details will not be shared with any third-parties. Only our doctors have access to your medical information.

Will a doctor review my consultation?

It is a legal and medical requirement that a doctor first reviews all completed consultations. We have a team of in-house doctors and specialists who will ensure your selected treatment is safe for your use. All information is stored securely and confidentially.

Please note, we do not guarantee that our doctors will approve treatment.

What happens after I submit my order?

Your consultation will be sent directly to our medical team, where it will be reviewed by one of our doctors.

If your chosen treatment is deemed suitable for your use, they will issue a prescription. Your prescription is then forwarded to our pharmacy, where your medication will be dispensed and dispatched for courier delivery.

Is the price all-inclusive?

Yes. All 121doc orders include a medical consultation, a prescription and next-day delivery. There are no additional costs. We believe in providing a safe and easy-to-use service.

Can I place more than one order at a time?

Yes. However, certain medications may negatively interact with each other. Our doctors may not approve your order on this basis.

You can place multiple items in one basket, and complete a consultation for all.

If you wish to place a second order for a different medication, you will have to complete a separate consultation.

What are my delivery options?

We offer several delivery options:

  • Next-day delivery
  • UPS Access Point - convenient parcel drop-off and collection near your home or work address
  • Nominated-day delivery - choose the most convenient day for delivery

All these options can be tracked and require a signature on delivery. If you are not available, a friend or relative can sign in your place.

None of these options will incur an additional charge.

Is it safe to buy prescription medication online?

To ensure you are purchasing from a reputable company, you should look to see their country’s regulatory bodies verify them.

In the UK, this is the Care Quality Commission (CQC) and the Medicines and Healthcare products Regulatory Agency (MHRA).Certificates can be viewed here.

How do I know which treatment is best for me?

Some treatments also offer the 'Advise Me' function. You will be asked questions about your lifestyle and needs, plus medical questions. You will then be presented with the advice of our doctors.

Is this service discreet?

Our patients’ privacy is of utmost importance. All your medical information is securely stored and only viewed by our doctors. We do not share your details with third-parties. We are also regularly inspected by various UK regulatory agencies, such as the Information Commissioner's Office (ICO).

All orders will only show on invoices, bank statements, etc. as ‘HHC Ltd’.

Other treatments that might interest you

Various treatments available

We offer treatments including Viagra and Cialis in varying dosages to suit all men.

  • Branded and generic treatments
  • Discreet next-day delivery

Various treatments available

We offer many treatments to manage high blood pressure.

  • Lowers high blood pressure
  • No doctor appointment required
  • Treatment for post-heart attack

What others say about us

4.6 score - 6937 Reviews

How does it work?

Select Select your treatment and complete our online consultation.
Free consultation


Select a condition here or use the top menu. For every condition, we provide you with information as well as the treatments we currently offer. If you don’t know which is best for you, just click the 'Advise-me' button.


If you know what you want, the quickest way to find a specific medication is to use the search bar here.


Every order starts with an online consultation. We will ask you medical questions to make sure only treatment that is safe and effective is prescribed. We take into account your lifestyle, health and any other medications you’re currently using.

The consultation is completely free, and takes between 5 and 10 minutes of your time.

All your information is safe with us. We don’t share it with anyone unless you want us to.


If you need any guidance, you can call, message or email our customer service team via the ‘How can we help you?' section here.

Prescribe Our doctors review your order.
Free prescription


As soon as you place the order, one of our doctors will review your consultation. On working days, this usually takes around one hour.


If the doctor has any additional questions, you will receive a phone call and an email. We understand you might be at work or busy. Our customer service representatives are always discreet and can call back at a more convenient time if necessary.

Our emails never contain any personal or medical information, only a link to your private account on our website (where you will find your messages).


Once our pharmacy receives your prescription, you will get a second email with your package tracking code.

Deliver Expect your delivery the next working day.
Always free. Discreet packaging.
Free next-day delivery


All orders include next-day delivery. Alternatively, you can select a delivery date that suits you better.


We also provide a free UPS Access Point service. Pick up your package from one of many collection points across the UK.

With your tracking code, you will know the estimated delivery time. All we need is your signature (or a friend‘s or relative’s).


All parcels are plainly labelled; there is no logo or any indication of its contents. Inside, you will find your treatment as well as a patient leaflet in your chosen language.

Repeat Subscribe and save with our repeat service. Never miss a dose again.
10 to 15% off


With 121doc’s Subscribe & Save service, you can automatically receive your treatment every few weeks or months.

The order will be generated by us, using the information you provided (including delivery frequency). You don’t have to do anything. Payment is taken two days before shipping.


There are two ways to subscribe. The first is during the order process. The second is via your profile here.

You can cancel or amend your repeat prescriptions at any time.


There are no sign-up fees with this service. Plus, you get a 10% discount off all future prescriptions, increasing to 15% after six orders!