ellaOne is an emergency contraceptive used in situations in which regular contraception has failed or not been used. Its active ingredient is called ulipristal acetate, a synthetic version of the female sex hormone progestogen.
|Prevents ovulation and
thickens womb lining
Progestogen in a woman's body is produced naturally after ovulation. It causes the ovaries to stop producing eggs. When taken as a form of emergency contraception, it fools the body's reproductive processes into thinking that ovulation has already occurred, and stops it from actually happening. Progestogen is also reported to alter the lining of the womb by making it thinner. This means that even if an egg were to be fertilised, it would not be able to embed itself to the womb lining in order to grow.
If you are going to use emergency contraception, you need to ensure that you are not already pregnant, as it can cause an ectopic pregnancy.
You can take ellaOne up to five days after having unprotected sex. This makes it one of the more popular options, as other emergency contraceptives only work if they are taken within 72 hours.
You should swallow one tablet before, during or after a meal and as soon as possible after having unprotected sex. If you vomit within three hours of taking it, consult your doctor immediately.
Some medications can have a negative effect when combined with ellaOne, or make it less effective in preventing pregnancy. It is important to inform your doctor of any other medications you are taking in order to ensure that it will be safe for you to use. Some of the medications that have a negative effect include: