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PROS

    Needs to be administered less frequently than other forms of contraception.

CONS

    Your periods may become irregular, lighter, heavier or longer.

The pros and cons listed are not exhaustive. Talk to your doctor or nurse for more information.

 

SIDE EFFECTS

All medicines can cause side effects, although not everybody gets them. Its important for you to ask your doctor for full comprehensive information for each option including understanding all potential risks, which will require an individualised medical review. The following section includes some initial considerations.

Injection side effects

You may experience side effects like headaches, acne, hair loss, decreased sex drive, weight gain and mood swings.

    The contraceptive injection may cause irregular bleeding. In some cases, it may cause shorter, lighter periods, or no periods at all.

PP-UN-WHC-GB-0297 July 2025