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Mercilon

Mercilon is a low-dose combined oral contraceptive, commonly known as “the pill.” It contains synthetic versions of the female hormones oestrogen and progestogen (ethinyl estradiol and desogestrel). Mercilon is taken daily to prevent pregnancy and, when used correctly, is nearly 100% effective.

Choose your dose

Dose guides: 0.15 mg /0.02 mg

1
£14.240.15 mg /0.02 mg · 3×21 pack

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Prescription medication: subject to clinical review by a GPhC-registered pharmacist.

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Royal Mail tracked delivery £2.99 per order

Mercilon 20mcg/150mcg product packaging

Medically reviewed by Muhammad Abdul Jalil, Superintendent Pharmacist · GPhC Reg No: 2236161

Last reviewed

Mercilon: A Low-Dose Combined Oral Contraceptive

What is Mercilon?

Mercilon is a low-dose combined oral contraceptive, commonly known as “the pill.” It contains synthetic versions of the female hormones oestrogen and progestogen (ethinyl estradiol and desogestrel). Mercilon is taken daily to prevent pregnancy and, when used correctly, is nearly 100% effective.

Mercilon is a suitable alternative for women sensitive to higher doses of oestrogen, making it a gentler option while still offering reliable contraceptive protection.

What are the Benefits of Mercilon?

Mercilon provides several benefits beyond preventing pregnancy:

  • Immediate Effectiveness: Offers immediate protection if taken on the first day of your period.
  • Lighter Periods: Reduces period pain and heaviness.
  • Regulated Menstrual Cycle: Helps achieve a more predictable menstrual cycle.
  • Reduced Premenstrual Symptoms: Eases mood swings and physical discomfort associated with PMS.
  • Lower Risk of Weight Gain: Contains a lower dose of oestrogen, reducing the likelihood of weight-related side effects.

Does Mercilon Protect Against STIs?

No, Mercilon does not protect against sexually transmitted infections (STIs). Only barrier methods such as condoms can prevent the spread of STIs.

If you are concerned about possible exposure to an STI, consult your healthcare professional or visit a sexual health clinic.

How Does Mercilon Work?

Mercilon prevents pregnancy by altering the body’s natural reproductive processes in three key ways:

  1. Stops Ovulation: Prevents the release of an egg from the ovaries.
  2. Thickens Cervical Mucus: Makes it harder for sperm to reach the womb.
  3. Thins the Uterine Lining: Reduces the likelihood of a fertilised egg implanting in the womb.

These mechanisms combine to provide highly effective contraceptive coverage.

How to Take Mercilon?

Starting Mercilon

  • Begin taking Mercilon on the first day of your period for immediate protection.
  • If started later, use additional contraception (e.g., condoms) for the first seven days.

Daily Routine

  • Take one pill daily for 21 consecutive days, ideally at the same time each day.
  • Swallow the pill whole with water, with or without food.

Pill-Free Week

  • After 21 days, take a seven-day break with no pills.
  • During this break, you may experience withdrawal bleeding, similar to a period.

Resuming Mercilon

  • Start your next pack on the eighth day, even if you are still bleeding.
  • If taken correctly, you remain protected during the pill-free week.

What to Do If You Miss a Pill?

Missed One Pill (<12 Hours Late)

  • Take the missed pill as soon as possible.
  • Continue with your pack as usual.
  • No additional contraception is needed.

Missed Two or More Pills (>12 Hours Late)

  • Take the most recent missed pill immediately.
  • Skip earlier missed pills and continue with the pack.
  • Use barrier contraception (e.g., condoms) for the next seven days.

Note: If you have had unprotected sex after missing pills, consider emergency contraception.

What Dosage is Available?

Mercilon contains:

  • 20mcg Ethinyl Estradiol (oestrogen).
  • 150mcg Desogestrel (progestogen).

This low dose is formulated to minimise side effects while maintaining high contraceptive effectiveness.

Potential Side Effects of Mercilon

Common Side Effects (Affecting 1 in 10 People)

  • Nausea or vomiting.
  • Breast tenderness or swelling.
  • Mild weight gain.
  • Mood changes, including mild depression.
  • Spotting or breakthrough bleeding.

Rare Side Effects

  • Severe allergic reactions (e.g., swelling of the lips or tongue).
  • Blood clots (very rare).

If side effects persist or worsen, consult your healthcare professional immediately.

Precautions When Using Mercilon

Mercilon may not be suitable for everyone. Avoid this contraceptive if you:

  • Are pregnant or breastfeeding.
  • Have a history of blood clots or deep vein thrombosis (DVT).
  • Suffer from heart, liver, or kidney problems.
  • Have unexplained vaginal bleeding.
  • Smoke and are over 30 years old.
  • Are over the age of 50.

Inform your healthcare professional about any medications or health conditions during your consultation to ensure this contraceptive is right for you.

Can I Buy Mercilon Online?

Yes, you can purchase Mercilon securely from Medihealth Direct. Follow these steps:

  1. Online Consultation: Complete a quick and confidential questionnaire reviewed by our healthcare professionals.
  2. Prescription Approval: If suitable, your prescription will be processed.
  3. Fast Delivery: Enjoy free next-day delivery in discreet packaging.

Mercilon FAQs

Is Mercilon the Same as Marvelon?

No, Mercilon contains a lower dose of oestrogen (20mcg) compared to Marvelon (30mcg).

Can I Take Mercilon Without a Break?

Yes, you can skip the seven-day pill-free break to delay your period. However, consult your healthcare professional first.

Does Mercilon Cause Weight Gain?

Weight gain is less common with Mercilon due to its lower oestrogen content.

Can Mercilon Help with Acne?

Yes, Mercilon may improve hormonal acne in some women.

Does Mercilon Protect Against STIs?

No, Mercilon does not protect against sexually transmitted infections.

Transparent pricing

The price you see is the price you pay, no hidden fees.

From
£14.24
Pack size comparison
0.15 mg /0.02 mg
  • 3×21 pack£14.24
  • 6×21 pack£21.74
What's included
  • Online consultation & prescription from a UK clinician
  • Discreet, tracked deliveryRoyal Mail tracked delivery is £2.99 per order, added at checkout.
  • Ongoing clinical support from our pharmacy team

You're only charged after a prescriber approves your consultation. If it's not right for you, you're not charged.

Delivery & packaging

  • Royal Mail tracked delivery
    £2.99 per order
  • Next-day
    Order by 2pm Monday to Friday and an approved order is dispatched the same day for next-working-day delivery.
  • Packaging
    Every parcel is plain and unbranded; temperature-sensitive medicines travel in insulated cold-chain packaging at no extra cost.

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GPhC RegisteredUK Licensed MedicationNext Day DeliveryDiscreet & Confidential
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