One type of oral contraceptive has been approved by the FDA for treatment of acne.

CNN: Health - Look what's 40 -- the pill

In 1960, the first commercially-produced oral contraceptive, Enovid 10, was launched in Skokie, Illinois.

CNN: Monday,

That's how I ended up playing second base in a branded hat advertising a new multiphasic oral contraceptive.

CNN: What 'The Pill' did

With current oral contraceptive regimens, women take the pill for 21 consecutive days and have 13 periods a year.

CNN: Emerging contraceptive options

The prostate drug CyPat and the oral contraceptive Seasonale are in final-stage trials.

FORBES: Lawyers In Lab Coats

The levels of estradiol from the patch are about 60 percent higher than in women taking the typical oral contraceptive pill, she says.

NPR: FDA Orders Label For Contraceptive Patch

Many other factors that have been studied do not seem to affect the risk of breast cancer (dietary fat intake, cigarette smoking, past oral contraceptive use, exposure to electromagnetic fields).

FORBES: After 40 Years Of Research, What Do We Know About Preventing Breast Cancer?

Her black leather purse, found near St Andrew Square bus station in Edinburgh days after she disappeared, contained a note with "Samaritans" scribbled on it and an oral contraceptive leaflet.

BBC: Peter Tobin robbed his young victims of their futures

Dr Amy Berrington, of Cancer Research UK, said the link between oral contraceptive use and cancer risk was highly complex, with studies showing that taking the Pill reduced ovarian and endometrial cancer risk, but increased the risk of breast cancer risk and probably also cervical cancer.

BBC: Oestrogen in the Pill could offer protective benefits