Where to find this specific information ???

Hi, there are many kinds of birth control pills, so it’s hard to give you a specific information. Each kind has something specific, but they all contain same or similar combinations of hormones. Look for this specific information exactly for those pills that you’re interested in. For example, if you want to use Schering, go to their site and see what their pills contain. Most of the pills contain combination of estrogen and progesterone. They prevent the ovulation and stop a woman from getting pregnant. The pill also thickens the mucus around the cervix and stops sperm to enter the uterus. There is also a kind of pills that contains only progesterone. These pills are called mini-pills.