Interactions between the drug and other contraceptive methods, especially emergency contraceptive pills, are of concern, as these interactions can reduce the effectiveness of contraception. The following article outlines the effects of liver enzyme inducers on emergency contraceptive pills containing levonorgestrel.

An intrauterine device (IUD) is a form of birth control that involves inserting a T-shaped device into the uterus to prevent implantation of an embryo. It is effective and has a success rate of up to 99%, but it does have some side effects. So what might these side effects be?