give reason : oral pills are hormonal preparation.

Oral contraceptive pills are artificial synthesised derivatives of female hormones oestrogen and progesterone.These hormones are artificially reproduced and made in form of pills which women take to prevent pregnancy .Some pills have both oestrogen and progesterone hormone which prevents the release of egg from ovary and some pills have only progesterone which makes uterus thick which does not allow the sperm to travel into the uterus.

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