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    The patch is designed to adhere to the skin for a week, but if it does become detached you need to replace it as soon as possible as it will become ineffective as birth control if more than 24 hours pass. If more than 24 hours have passed then use a backup method of contraception such as condoms for a week. Please refer to the patient leaflet for full instructions.

PP-UN-WHC-GB-0300 July 2025