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Combined Pill | Active ingredient(s): Ethinylestradiol & Desogestrel | Manufacturer: Various

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

Can I buy Mercilon contraceptive pill online?

Heading for a doctor's appointment for a repeat prescription every time you need Mercilon is tiresome. Buying contraception online is a convenient and quick option. You simply need to complete a free consultation with all the questions that would be asked in your face-to-face appointment anyway, which will be assessed by one of our doctors. Once they approve your consultation, a prescription will be sent straight to the pharmacy for dispatch.

Packages are all discreet so you can get your contraception delivered anywhere and they will be sent the next day for free if ordered by 4.30pm.

What is Mercilon?

Mercilon is a contraceptive that is nearly 100% effective at preventing pregnancy. It is from the class of contraception known as the combined pill, the most popular contraceptive option in the world as well as the UK. This means it contains both oestrogen and progestogen that work to mimic your menstrual cycle.

As with all combined pill, Mercilon must be taken correctly for it to be that effective. This means taking one pill at the same time for 21 days followed by a seven-day break. More on the process of the combined pill is detailed below.

The Mercilon pill offers immediate protection when taken on the first day of a woman's period, whilst the three-step process and combination of both oestrogen and progestogen make it one of the most effective contraception methods available. Whilst this is Mercilon primary aim is to prevent pregnancy, many women decide to use the combined pill for additional reasons:

  • Reduce blemishes and improves acne-prone skin
  • Minimises any pain and discomfort during your period (cramping)
  • Subdues PMS symptoms such as mood fluctuations
  • Regulates the starting date to one reliable time each month

Mercilon also contains a lower concentration of oestrogen, and so has a reduced risk of causing side effects like weight gain. In fact, some women have experienced weight loss after long-term use of this treatment.

How does Mercilon work?

The Mercilon contraceptive pill contains synthetic forms of both oestrogen and progestogen. The presence of both of these hormones makes Mercilon one of the most effective options of contraception for women at over 99%.

Mercilon is nearly 100% effective as it works using a three-stage process for pregnancy prevention:

  • Step 1 - It tricks the body into thinking that ovulation has already occurred
  • Step 2 - It alters the lining of the womb preventing any fertilised egg from latching on to develop
  • Step 3 - It thickens the naturally occurring fluids in the cervix, which stops sperm from travelling into the womb


Mercilon also boasts a more finely balanced concentration of the active ingredients than some of its counterparts, making this combined contraceptive option more tolerable than others. In particular, the Mercilon pill can be viewed as an effective alternative for women who have experienced difficulties when using similar, but stronger, contraceptive pills like Marvelon.

How to take Mercilon

Mercilon is very simple to take and should be taken as instructed to be 99% efficient. Missing more than one pill in one blister pack or taking pills at varied times in the day can reduced its effectiveness and put you at an increased risk of pregnancy. This may also be the case for certain antibiotics and antivirals. If you're taking additional medication, you should inform your doctor to double check that they don't counteract each other.

Each tablet contains the same level of hormones. As the dosage of these two active ingredients is the same in each pill, this makes Mercilon a monophasic contraceptive pill. Whilst the blister pack is labelled for your ease, this means the order in which you take Mercilon doesn't matter as long as you take 21 pills consecutively. The two synthetic hormones Mercilon contains is…

  • Ethinylestradiol (20mcg) - artificial form of oestrogen
  • Desogestrel (150mcg) - artificial form of progestogen

The instructions for using this treatment is the same as other monophasic contraceptives, which is detailed in the breakdown below:

  • Take this treatment for 21 consecutive days. The blister packs are labelled the days of the week to help keep track.
  • Take each pill at the same time every day. Many women take their contraceptive first time in the morning or last thing at night.
  • The next seven days are pill-free. You'll experience a withdrawal bleed similar to a period.
  • Continue the next pack on the seventh day. Repeat this process until you want to stop using Mercilon.
  • Pills can be taken with or without water. They are small enough to digest without further aid.
  • Mercilon is available in a three month or six month supply depending on your preference. You will only need to complete a consultation two-four times every year.

You can start Mercilon at any point but you will only have immediate protection if you start taking it on the first day of your period. If you start Mercilon any other day than the first day you will need to use a barrier contraceptive method such as condoms for an initial seven days before being over 99% protected.

What happens if I miss a Mercilon pill?

We will provide you with a detailed patient leaflet that will have full instructions on what to do if you happen to miss a pill. The specifics will depend on the number of pills that you miss.

  • If you miss a single pill, take the tablet as soon as you notice. You will still be fully protected.
  • If you miss anymore than this, you may no longer be protected and will have to use a barrier contraceptive method for a further seven days.

It is important that you take each contraceptive pill at the correct time for optimum effectiveness. Each Mercilon pill will be calendar marked to help you keep track of your treatment cycle, although we would advise that you take each tablet at the same time each day to make this easier.

STI Protection

The combined pill including Mercilon doesn't provide protection from sexually transmitted infections. This includes bacterial infections like chlamydia and gonorrhoea. The best form of protection from STIs is barrier methods such as male and female condoms. They provide security against bacteria infections and can help prevent viral infections too.

Mercilon Side Effects

As Mercilon contains a lower concentration of oestrogen, users will be at less risk of side effects. Whilst weight gain on many other contraceptive pills can be a side effect (often down to water retention that subsides over a couple of months), this medication should also not lead to any weight gain. In some cases it is has even been recorded to lead to minor weight loss during long-term use.

The risk of side effects with this treatment is very small and any that do occur will usually pass after a few weeks, once your body has become accustomed to the ingredients in the pill. Possible symptoms can include mood swings, breast tenderness and irregular bleeding.

With side effects of the pill, it is advised to give three months to let your body become accustomed to the influx of hormones before swapping, unless the side effects are particularly troublesome.

You should consult with a doctor if you persistently experience any side effects, or if you feel that the pill is causing you any other issues.

Mercilon Precautions

As this treatment uses a lower concentration of oestrogen, it is suitable for women who are more sensitive to this particular hormone. There are some women who should not use this contraceptive pill, for example if you are pregnant or breastfeeding.

Mercilon may also be an unsuitable contraceptive choice if any of the following apply to you.

  • Liver problems
  • Heart problems
  • Severe diabetes
  • History of strokes

Can I take other medications with Mercilon?

Mercilon is a well-tolerated medication that shows no reaction with alcohol or dietary habits. That being said, there are certain medication groups that can impact how this treatment functions. These include:

  • Antibiotics
  • Tetracyclines
  • Barbiturates

When completing your online medical consultation, you must ensure that you include any medication (prescription or over the counter) that you are currently taking, so our Medical team can make an informed decision on whether Mercilon is the right contraceptive option for you.

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’.

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How does it work?

Select Select your treatment and complete our online consultation.
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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!