How effective is Cerazette (desogestrel)?

When taken correctly, Cerazette prevents pregnancy more than 99% of the time. This means that in any given year, less than one in every 100 women will get pregnant while taking Cerazette.

The efficacy of Cerazette can be affected by other medicines, such as the herbal remedy St. John's Wort. Please let your doctor or family planning trained nurse know if you are taking other medicines.

If you suffer from sickness and/or diarrhoea within 3 to 4 hours after taking your Cerazette tablet, the active ingredient may not have been completely absorbed. If so, please follow the advice for missed pills.

Contraceptive Choices – click here to find out more

Adverse events should be reported. Reporting forms and information can be found at www.yellowcard.gov.uk.
Adverse events should also be reported to MSD Drug Safety Department on 01707 363773

Date of Preparation 9/09
Job Code 9/12 - CZT.10.GB.42040.AV

Terms and Conditions
Privacy Policy

© 2010 Organon Laboratories Ltd trading as MSD: Registered Address: Hertford Road, Hoddesdon, Hertfordshire, EN11 9BU.
A company registered in England and Wales. Company Registration Number: 820771