- Oral and vaginal pills and Intra Uterine Contraceptive Devices (IUCDs) come under chemical methods of contraception.
- Oral pills contain hormones which prevent the production of ovum (egg). Although these pills have certain side effects , it is considered a very effective way of preventing fertilization.
- Vaginal pills contain spermicides (cide means ‘to kill’) which are certain chemicals that kill sperms.
- IUCDs like copper-T are also a very effective contraceptive. Copper-T is placed in the uterus by a doctor and it prevents the implantation (the process in which an embryo is embedded in the lining of the uterus) of a fertilized egg in the uterus.
- However, these methods cannot prevent the transmission of STDs.