Mercilon Pill

  • 99% effective
  • 21 day course with 7 day break
  • Low dose contraceptive pill
From As low as £19.99

Disclaimer: The prices displayed should only be used as a reference of our prices for this medicine. If you are approved for treatment, our prescribers will decide on a suitable treatment for you to jointly consider.

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order before 2pm

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What is Mercilon contraceptive pill?

Mercilon is one of the most reliable reversible forms of contraception, when taken correctly.

This is a combined oral contraceptive pill that women should take to prevent getting pregnant. It is a low-dose contraception pill that contains two different female sex hormones, oestrogen and progestogen.

Mercilon is a 21 day contraceptive pill; you should take the pill every day for 21 days, followed by a seven-day break where you do not take any pills.

You can buy Mercilon online from Medicine Direct by completing a confidential online consultation with one of our registered doctors or pharmacists. They will give you a prescription to buy Mercilon online from our pharmacy; place your order by 2pm and you will benefit from our next day delivery service.

How does Mercilon work as a contraceptive pill?

Mercilon is a low-dose contraceptive pill containing the female sex hormones oestrogen and progestogen. These hormones stop your ovaries from releasing an egg, which means you avoid getting pregnant.

This pill also thickens the mucus in your cervix, making it much harder for sperm to enter the womb and fertilise any egg that may have already been released.

What are the benefits of Mercilon?

Mercilon tablets have various benefits:

  • They do not interrupt sex
  • When used as instructed, they are one of the most reliable reversible forms of contraception
  • They may help with premenstrual symptoms
  • They normally make your periods lighter, more regular and less painful

What are the disadvantages of Mercilon?

It is important to bear in mind that contraceptive pills like Mercilon will only protect you against getting pregnant. They will not protect you against sexually transmitted infections (STIs). You will still need to use a condom for this level of protection.

Women who take the contraceptive pill are at a slightly increased risk of blood clots in the veins and arteries, particularly during the first year or when restarting a combined hormonal contraceptive after a break of at least 4 weeks.

How effective is Mercilon at stopping me becoming pregnant?

When taken as instructed, Mercilon is 99% effective at stopping a woman from becoming pregnant. If you vomit or have severe diarrhoea shortly after taking the pill, you may not be completely protected, however. If this happens, keep taking the pills as usual but use a condom for the next 7 days.

Which pills are the same as Mercilon?

The only other contraceptive pill that contains exactly the same active hormonal ingredients as Mercilon is Gedarel 20/150.

Alternatives to Mercilon

Many different forms of contraceptive pills are available to order from Medicine Direct, including:

  • Femodette
  • Gedarel
  • Cerazette
  • Eloine

Other alternative types of contraception include condoms, the contraceptive patch, the injection or IUD.

Speak to your doctor or pharmacist about the most suitable form of contraception for you to use.

Who should not take Mercilon?

Mercilon tablets are not a suitable contraceptive pill for everyone to take.

Do not use Mercilon if:

  • You are allergic to any of the ingredients contained in these pills
  • You need to have an operation or are off your feet for long periods of time
  • You have (or have ever had) a blood clot in a blood vessel in the legs, lungs or other organs
  • You know that you have any disorder that affects your blood clotting
  • You have ever had a stroke or a heart attack
  • You have (or have ever had) angina pectoris
  • You have or have recently had a severe liver disease
  • You have ever had a liver tumour
  • You have ever had pancreatitis that was associated with high levels of fat in the blood
  • You are or think you might be pregnant
  • You have cancer that is affected by sex hormones, such as breast cancer, ovarian cancer or womb cancer
  • You have any unexplained vaginal bleeding
  • You have hepatitis C and are taking any medicines that contain ombitasvir/ paritaprevir/ ritonavir and dasabuvir

Any of the diseases below may increase the risk of a blood clot in the arteries:

  • Hyperhomocysteinaemia
  • Very high blood pressure
  • Severe diabetes with blood vessel damage
  • High levels of fat in the blood

Make sure your doctor is aware before you start taking Mercilon if you have any of the following conditions:

  • You have high levels of fat in the blood
  • You need to have an operation or are off your feet for a long time
  • You have ever had migraines
  • You have diabetes
  • You have ever had any liver or kidney problems
  • You have ever suffered with severe depression
  • You have ulcerative colitis or Crohn's disease
  • You have sickle cell anaemia
  • You have systemic lupus erythematosus (SLE)
  • You have haemolytic uraemic syndrome (HUS)
  • You have chloasma
  • You have ever had any problems with your heart, circulation or blood clotting
  • The veins under your skin are inflamed
  • You have varicose veins
  • You have just given birth (this puts you at an increased risk of blood clots)
  • You have high levels of fat in the blood, or a family history of this problem

Possible side effects

Like all contraceptive pills, Mercilon can cause side effects, although not everyone will suffer from them.

Seek medical attention straight away if you get symptoms of any of the following conditions:

  • Stroke
  • Heart attack
  • Blood clot in the eye
  • Deep vein thrombosis
  • Pulmonary embolism
  • Blood clots blocking other blood vessels
  • Breast cancer
  • Cancer of the cervix
  • Severe liver problems

See the patient information leaflet for a list of symptoms that are common when experience the conditions listed above.

Common side effects of Mercilon include:

  • Headache
  • Sore or tender breasts
  • Weight gain
  • Stomach problems
  • Mood swings or depression

Uncommon side effects can include:

  • Diarrhoea
  • Fluid retention
  • Migraine
  • Decreased libido
  • Breast enlargement
  • Vomiting
  • Skin problems (rash, hives)

Speak to your doctor if any of the se reactions bother you or do not go away.

Please note, this list is not exhaustive. Please refer to the Side Effects tab for further details.

How do you take Mercilon?

Our pharmacists and prescribers follow NICE guidelines whenprescribing Mercilon Pills

To effectively prevent pregnancy, you must use Mercilon tablets exactly as you are instructed by your doctor or pharmacist. Read the patient information leaflet for full instructions and speak to your doctor or pharmacist if you are not sure.

Mercilon comes in strips of 21 pills, each of which are marked with a specific day of the week.

Take one Mercilon pill at the same time every day for 21 days.

Swallow the pills whole with a drink of water; do not crush or chew them.

Start taking the pill that is marked with the correct day of the week.

Follow the direction of the arrows on the strip, taking one pill every day until you have finished all 21 pills.

After you have taken all 21 pills, you will have a 7 day break where you do not take any pills.

You should have a withdrawal bleed within a few days of taking the final pill in the strip. The bleed may continue even when you start your next strip of pills. Providing you have taken the pill as instructed, you will still be protected against pregnancy during the 7 day break and will not need to use a condom.

After the 7 day break, start taking the next strip of 21 pills immediately.

What if I miss a pill?

If you miss a pill, take it as soon as you remember, even if that means taking two pills in the same day. If you miss one pill, you should still be protected against getting pregnant. However, if you have missed more than one day, you are advised to use a condom for the next seven days as you might not have complete contraceptive protection.

Mercilon Side Effects

Rare side effects of Mercilon can include:

  • Weight loss
  • Decreased libido
  • Irregular vaginal bleeding
  • Erythema nodosum
  • Erythema multiforme
  • Harmful blood clots
  • Unusual breast or vaginal discharge
  • Discomfort in the eyes if you wear contact lenses

Speak to your doctor if you get any of the above.

Serious allergic reaction

In rare instances, it is possible that you may have a serious allergic reaction to this contraceptive pill.

You must dial 999 or go to A&E straight away if you get any of the following:

  • You develop a skin rash that may have red, itchy, swollen, blistered, or peeling skin
  • You have tightness in your chest or throat
  • Your face, tongue, mouth, throat or lips start to swell
  • You are wheezing
  • You are having difficulty breathing or speaking

You may be having a serious allergic reaction and require immediate treatment in hospital.

Always read the patient information leaflet for comprehensive information on side effects and how to cope with them. If you are worried about side effects, please speak to your doctor before you start taking Mercilon.

Mercilon Warnings and Drug Interactions

Before taking Mercilon, inform your doctor if you are taking any other form of medicine, including prescription and non-prescription medication, herbal remedies, vitamins and supplements.

Which medicines interact with Mercilon?

The following medicines may stop Mercilon from working properly:

  • The herbal remedy St. John's wort (for depressive moods)
  • Medicines for the hepatitis C infection
  • Medicines for tuberculosis
  • Medicines for epilepsy, such as primidone, phenytoins, phenobarbital and carbamazepine
  • Medicines for high blood pressure in the blood vessels in the lungs
  • Medicines for other infectious diseases, such as griseofulvin
  • Medicines for the HIV infection, such as ritonavir and nelfinavir

If you need to take any of the medicines listed above, you will also need to use a barrier contraceptive, such as a condom.

For more information on medicines that interact with Mercilon Pills

What are the risks of Mercilon?

Women who take a contraceptive pill like Mercilon are at a slightly increased risk of breast cancer, cervical cancer or a blood clot in a vein or artery in comparison to women who do not take the pill.

Your risk of breast cancer is increased if you have a close relative (such as a mother or grandmother) who had breast cancer, or if you are seriously overweight.

If you notice any changes in your breasts, speak to your doctor immediately.

Although rare, contraceptive pill as also been linked to liver diseases like jaundice and non-cancerous liver tumours.

Some women who take the Mercilon pill have reported mood swings, including depression. Depression can sometimes lead to suicidal thoughts; if you experience this, seek help immediately.

Mercilon contains lactose. If your doctor has informed you that you are intolerant to certain sugars, speak to them before taking this contraceptive pill.

Always refer to the patient leaflet for full information on warnings and drug interactions. If you have any questions or concerns, please speak to your doctor before you buy Mercilon online.

Pregnancy and breastfeeding

You must not use Mercilon if you are pregnant. If you think you might have become pregnant, take a pregnancy test before you stop using Mercilon.

Mercilon is also not recommended for use by women who are breastfeeding. Your doctor may recommend an alternative form of contraception for you to use while breastfeeding. For more information on oral contraceptives when pregnant or breastfeeding

Mercilon Ingredients

Mercilon contains the active ingredients desogestrel and ethinyl estradiol.

Each pill also contains: dl-alpha-tocopherol, potato starch, povidone, stearic acid, aerosol and lactose.

Delivery Company Delivery Service Price Details
Royal Mail UK Delivery Standard UK Tracked £2.99 3 - 4 Working Day Delivery
DPD UK Next Day Delivery Next Day Delivery - Tracked £5.95 Order by 2pm (subject to Dr approval) Next Working Day Delivery
DPD UK Next Day Delivery Next Day Tracked Morning Delivery by 12:00pm £12.95 Next Working Day Morning Delivery by 12:00pm
DPD UK Next Day Delivery Tracked Saturday Delivery £9.95

Delivery specified for Saturday

Order Friday by 2pm (subject to Dr approval)

Please note that next day delivery to Northern Ireland, Scottish Highlands & Islands and British Isles cannot be guaranteed. Please contact our team for more information.

Written bySonia Khan MPharm: 2076091

Updated on: 02/06/2021

This content has been written by our Pharmacist Sonia Khan and has been medically reviewed by our Superintendent Pharmacist Hussain Abdeh

Sonia Khan
MPharm: 2076091


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