Antifertility drugs:

These are the chemical substances employed to manage the pregnancy. These are as well known as oral contraceptives. The fundamental plan of anti fertility drugs is to avoid conception or fertilization.

Oral contraceptives connected to the class of natural products termed as steroids.

Both of them control the female menstrual cycle and ovulation. The birth control medicines are mainly a mixture of estrogen and progesterone derivatives that are much more potent as compared to the natural hormones.