DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Editorial use only.
Contraceptive pills. Packet of the oral contraceptive Loestrin. These pills contain norethisterone acetate, also known as norethindrone acetate, which is a form of progestin, a synthetic progesterone hormone.
Model release available. Property release not required.