The Mini-Pill contains progesterone only (as opposed to oestrogen and progesterone in 'the Combined Pill')

How Does It Work?

The progesterone makes the cervical mucous thicken. This mucous then acts as a plug which prevents the sperm from entering the uterus and fertilising the egg.

Does It Work?

Yes. The Mini-Pill is 96% to 99% effective.

Who Should Take It?

The Mini-Pill suits

• Women who find the Combined Pill unsuitable because the oestrogen can cause nausea, high blood pressure, weight gain or headaches
• Women who are breast-feeding as the mini-Pill has no effect on breast milk or the baby
• Older women who are at risk of blood clots or high blood pressure
• Smokers over 35 as there is no added risk because of the high blood pressure associated with smoking.

How Should I Take It?

The Mini-Pill must be taken EVERY day at the SAME time within a 3 hour leeway.

If the Mini-Pill is started on the first day of your period, it is effective immediately. If taken at any other time during your cycle it will not be protective for 48 hours (3 pills).

If a Mini-Pill is taken late or forgotten another form of contraception must be used for 48 hours.

What Are The Disadvantages?

• An increased risk of spotting between periods
• Prolonged periods
• Irregular periods
• Heavier periods
• No periods
• The effectiveness of the Mini-Pill can be reduced by other drugs so check with your doctor of Family Planning Victoria.

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Last updated:20/02/2007
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