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A 42-year-old member asked:

How does ortho novum 1/35 28 birth control pills work?

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Dr. David Kurss
Obstetrics and Gynecology 39 years experience
Inhibits ovulation : All oral contraceptive pills that contain estrogen and progestin work primarily by inhibiting the passage of an egg (ovulation). The progestin component can also thicken the cervical mucus to prevent sperm transport.

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Last updated Jul 13, 2012

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