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Loestrin 20

Loestrin 20

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Prescription Range

Loestrin 20 is a low-dose combined contraceptive pill that is 99% effective in preventing pregnancy and regulates a woman’s cycle. It works by preventing ovulation and thickening the cervical mucus, making it harder for sperm to get through. Suitable for younger women and contains progesterone and oestrogen.

Women's Health
Contraceptive Pill
Price
£13.85

Loestrin 20

Pack Size: 63

£13.85

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The Loestrin pill can be used to prevent pregnancy, and when taken correctly is 99% effective. However, many women also choose to take them to regulate their period, help with heavy periods, reduce period pain, and reduce acne.

Most pills can are taken for 21 days with a seven-day break, where there is often a breakthrough bleed, which usually appears as a period and is normal.

Other pills are taken for 28 days without a break. These can often stop regular menstruation from occurring or can help to lighten heavy periods.

Before taking oral contraceptives, it is important to measure your weight, as well as take readings of your blood pressure, as these can affect which pill is best for you. You can purchase home blood pressure kits or visit a local pharmacy to get a free blood pressure check. You will also be asked questions regarding your health history, including migraines, smoking, a family history of stroke or heart attack, and breast cancer.

There is always a risk of side effects with all medications, and this combined contraceptive pill is no exception. Some of these can be quite mild and can subside over time. Others are more serious and should be reported to your GP right away if you experience any side effects with Loestrin 20. Please contact a member of our team if you are concerned about any potential side effects that may occur when taking oral contraceptives.

Common side effects of this combined oral contraceptive pill include:

  • Spotting in the first few months
  • Headaches
  • Mood changes
  • Weight changes
  • Nausea
  • Breast tenderness
  • Changes in libido

There are some serious side effects associated with taking the combined oral contraceptive pill. Seek medical attention if you experience any of the following:

  • Changes to the breast such as discolouration around the nipple or lumps
  • Swelling in the lower leg that is inflamed and hot to the touch
  • Discomfort and bleeding after sex

Leaflets

Before taking any medicines such as the combined oral contraceptive pill, regardless of whether they are over-the-counter or prescription-only, it is essential always to read the patient information leaflet.

Patient Information Leflet

Umar Razzaq, MPharm | University of Strathclyde, Clinical Pharmacist.
Content Written by:Umar RazzaqMPharm | University Of Strathclyde
Date Written:01/03/2024
Role:Clinical Pharmacist
Nish Fayyaz, MPharm | University of Strathclyde, Pharmacist.
Medically Reviewed By:Nish FayyazMPharm | University Of Strathclyde
Date Checked:30/05/2025
Role:Pharmacist
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