Ortho Tri-cyclen Lo
- Low estrogen formulation.
- http://www.thepill.com/

Seasonale
- Official web site for Seasonale, the first FDA-approved extended cycle birth control pill that offers just 4 periods a year.
- http://seasonale.com

CanadianBirthControl.com
- An explanation of the differences in names and availability of birth control pills between Canada and the United States.
- http://www.canadianbirthcontrol.com/

PBS American Experience Online "The Pill"
- Includes a gallery featuring samples of early pill packaging, and information about the unregulated clinical trials held in Puerto Rico.
- http://www.pbs.org/amex/pill/

Understanding Low Dose Oral Contraceptives
- Article for professionals covers pharmacology, efficacy, noncontraceptive health benefits, and side effects. Includes table of pills currently available in the United States.
- http://www.arhp.org/healthcareproviders/cme/onlinecme/lowdosecp/index.cfm?ID=54

Oral Contraception Update
- Technically-oriented report covers changes/advances in pill formulations in recent years, including potential health benefits and risks. Includes a list of birth control pills and their producers and formulations available in the US.
- http://www.arhp.org/healthcareproviders/onlinepublications/clinicalproceedings/rhupdatecp/pillformulations.cfm?ID=185

Oral Contraceptives - The Pill
- Feminist Women's Health Center's info on use, cautions, danger signs, missed pills, and advantages of oral contraceptives.
- http://www.fwhc.org/birth-control/thepill.htm

The Pill: 30 Years of Safety Concerns
- This article from FDA Consumer magazine reviews the history of oral contraceptives, health concerns, health benefits, and trends toward the future.
- http://www.fda.gov/bbs/topics/CONSUMER/CON00027.html

Conditions Requiring Precautions in the Use of Oral Contraceptives
- Technical information about which patients should exercise caution or avoid using combined oral contraceptives, from John's Hopkins Reproline.
- http://www.reproline.jhu.edu/english/6read/6multi/pg/cc3.htm

Birth Control Pills and Abnormal Bleeding
- Frequently asked questions and articles about oral contraceptives, including side effects, timing of use, effect on menstrual bleeding, and interactions with other medications.
- http://www.wdxcyber.com/mbcontra.htm

Go Ask Alice
- Information on how birth control pills work to prevent pregnancy. Written in a question and answer format.
- http://www.goaskalice.columbia.edu/0663.html