A combined Oral Contraceptive Pill (OCP) contains derivatives of the female hormone Estrogen's and Progestin in low doses such as Ethynyl Estradiol and Levonorgestrel. It should be taken daily to avoid pregnancy. Consistent and correct use provides you with 99.9% effectiveness. It is manufactured in Germany by Bayer Schering Pharma. Has been used by Sri Lankan women for more than 50 years. There is no delay in conceiving after discontinuation of the pill.