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Buy the Mercilon contraceptive pill online in the UK without a doctor's appointment

  • A box containing Mercilon® desogestrel/ethinylestradiol 63 tablets
  • A box containing Mercilon® desogestrel/ethinylestradiol 63 tablets in sachet
  • Mercilon® desogestrel/ethinylestradiol 63 tablets with storage and usage instruction
5 Our patients rate this 5 review
6 months (6x21 pills) (£28.99)

Prices include next-day delivery and prescription

3 months (3x21 pills) £18.99
6 months (6x21 pills) £28.99 Save £9

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How to buy Mercilon online?

Mercilon is highly effective when taken correctly, and well tolerable for a wide range of women. Being a combined pill, it contains both artificial oestrogen and progestogen to manipulate your body into thinking ovulation has already happened. This process makes Mercilon at preventing pregnancy when used correctly, as well as including a whole host of other benefits.

Buying Mercilon online in the UK is a simple process, and available in either 63 tablets or 126 tablets from OnlineClinic. You will require a prescription slip before purchasing, which can be obtained after a quick consultation. Buying contraception online avoids booking and attending a face-to-face appointment, especially when you know the medication is suitable and you have a busy schedule. In addition, OnlineClinic offer free next day delivery meaning you can get your contraception quicker than the usual traditional format and in time, if you happen to have forgotten, meaning you stay completely protected.

What is Mercilon?

Mercilon is an oral contraceptive that is taken on a daily basis. Its primary aim is to prevent pregnancy, of which it is 99% effective[1] at doing so when used correctly, however, there are benefits including reducing menstrual cramps and a heavy flow as well as making your time of the month far more predictable.

Mercilon is a combined pill meaning it contains both artificial oestrogen and progestogen, although it's worth noting that this particular contraceptive does contain a lower dosage of oestrogen than most pills so can be suitable if you have experienced side effects with the female sex hormone.

Short facts about Mercilon
How to take

Mercilon is taken over 21 days of the month. This is one tablet daily, at the same time, with a seven-day break where you will experience a withdrawal bleed similar to a period.

How it works

Mercilon works by not producing an egg the vast majority of the time, thickening the cervical fluid so the sperm cannot penetrate and altering the womb lining so an egg can't attach itself.


Mercilon is 99% effective at preventing pregnancy as well as easing painful menstrual cramps and other period related symptoms.


There is one dosage available to buy online in the UK. This contains 150mcg of ethinyl estradiol and 20mcg of desogestrel.

Side effects

Side effects, especially those that can cause distress, are rare with Mercilon. If you do experience side effects, these tend to pass over a couple of months or are extremely manageable, and include breast tenderness, nausea/vomiting and spotting.

How does Mercilon work?

Mercilon has two active ingredients; synthetic oestrogen ethinyl estradiol and synthetic progestogen desogestrel. These two hormones work in three ways to prevent conception. Firstly, it is extremely unlikely an egg will be released because these hormones trick your body into thinking you have already ovulated. This is the primary function the majority of the time. If by some chance, an egg is released, there is a backup plan.

The hormones also thicken the cervical fluid meaning it's much more difficult for the sperm to reach the egg. Lastly, the womb lining alters and thins meaning an egg cannot attach itself. With three ways to prevent pregnancy, this makes Mercilon 99% effective[1] when taken correctly.

How to take Mercilon?

Mercilon comes in the form of blister packs; tree for three months and six for six months. Each blister pack is clearly marked with the day of the week, making it easier for you to keep track, and contains 21 pills that each have the same amount of hormones in them.

  • Take one pill daily at around the same time
  • Continue for 21 days
  • Then you should have a seven-day break
  • During this time, you will experience a withdrawal bleed similar to a period
  • After seven days, you can continue with the next pack

You should take each pill at around the same time everyday for it to remain highly effective. If you miss or delay taking a pill, you can refer to our combined pill page for more information on what to do.


There is only one dosage of Mercilon that is 150mcg of ethinyl estradiol and 20mcg of desogestrel. This has been proven to be highly effective with a reduced likelihood of side effects and can be ordered online safely.

Side effects and precautions

Side effects of any combined pill, including Mercilon, can occur during the first three months of taking the medication as your body comes accustomed to the hormones. Doctors will always advise that you stick with the pill of choice unless the side effects are completely unmanageable. Some side effects include spotting (bleeding), nausea, mood changes and breast tenderness. If these symptoms persist, contact your doctor for more information or an alternative method.

There might be some precautions to consider before buying Mercilon. This could mean you can still use the contraceptive with caution, or you cannot use at all. These include, if you have, had have or are:

  • Pregnant
  • Breastfeeding
  • Heart problems
  • Stroke
  • Blood clot
  • Deep vein thrombosis
  • Unexplained vaginal bleeding

Mercilon is not an effective method against sexually transmitted infections (STIs). If you are unsure about the sexual health of your partner, or yourself, you should use a condom or get tested before having sex without barrier contraception.

Note: Decisions about treatment are for both the prescriber and the person to jointly consider during the consultation. However, the final decision will always be the prescriber’s.

Mercilon information
Product nameMercilon
Active ingredient(s)Ethinylestradiol and Desogestrel
ManufacturerOrganon Pharma
Lowest price£18.99
Trustpilot rating5/5
Trustpilot reviews4
AvailabilityIn stock
DescriptionMercilon is a combined contraceptive pill that offers 99% effectiveness at preventing pregnancy
ExemptionSubject to medical prescription
Available dosage150mcg / 20mcg
ApplicationContraception in adult women
UsageTake 1 tablet per day for 21 days followed by a 7 day break
Drug classCombined oral contraceptive (COC)
Alcohol consumptionNo influence
When breastfeedingNot recommended, ask your doctor for alternatives
When pregnantNot applicable
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Rated with 5 based on 4 Independent customer reviews.

  • Excellent Product Review: completely satisfied 07 May
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