What substance in oral pills used as contraceptive?

1.	What substance in oral pills used as contraceptive?
Answer» The active ingredients in birth control pills are synthetic versions of the female hormones estrogen and progesterone. Combination oral contraceptives are birth control pills that contain both ingredients. There are some birth control pills that are progesterone-only pills. Oral contraceptives (birth control pills) are medications that prevent pregnancy. They are one method of birth control. Oral contraceptives are hormonal preparations that may contain combinations of the hormones estrogen and progestin or progestin alone.

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