Types of Oral Contraceptive Pills They contains either progesterone alone or a combination of progesterone and oestrogen. Thus, oral contraceptive pills are of two types (i) Mini Pills They contains progestin only. Saheli contains a mosteroidal preparation called centchroman, which is taken once in a week after an initial intake of twice a week dose for 3 months. It has high contraceptive value with very little side effects. (ii) Combined Pills They are most commonly used oral contraceptive pills. They contains synthetic progesterone and oestrogen to check ovulation. Pill like Mala D and Mala N are commonly used combined contraceptive pills. They are taken daily