Levonelle

How does it work?

Levonelle one step tablets contain the active ingredient levonorgestrel, which is a synthetic derivative of the naturally occurring female sex hormone, progesterone.

It is not fully understood how this medicine prevents pregnancy. It is thought to work by preventing ovulation and fertilisation and also by altering the lining of the womb, depending on which stage of the menstrual cycle the woman is at.

In a woman’s normal menstrual cycle, an egg matures and is released from the ovaries (ovulation). The ovary then produces progesterone, which prevents the release of further eggs. Levonorgestrel, tricks the body processes into thinking that ovulation has already occurred, as it provides high levels of synthetic progesterone. This prevents the release of eggs from the ovaries.

Levonorgestrel also increases the thickness of the natural mucus at the neck of the womb (cervix), making it more difficult for sperm to cross from the vagina into the womb. By preventing sperm entering the womb, successful fertilisation of any egg that is there is less likely.

Levonorgestrel is also thought to alter the lining of the womb, preventing it from being prepared for a fertilised egg. This means that if an egg is released from the ovaries and is fertilised, it cannot implant into the womb and therefore pregnancy is avoided.

The whole process from fertilisation to implantation in the womb can take up to three days, so the morning after pill can only stop pregnancy from occuring for up to 72 hours after unprotected sex. The sooner it is taken after unprotected sex, the more effective it will be.

It is estimated that 84 per cent of pregnancies will be prevented if this morning-after pill is taken within 72 hours of unprotected sex. The tablet is more effective at preventing pregnancy the earlier it is taken, so it is important to take it as soon as possible after unprotected sex, rather than delay to the third day.

More information; Netdoctor

Please note; You will require a prescription from our doctor to order this item.
If your order is not approved by the Doctor, then YOU WILL NOT BE CHARGED.
Please complete the Medical Declaration Form if you have not already done so.

close