Birth control pills and the patch are two birth control alternatives for women. Both contain the hormones estrogen and progestin. If used properly, failure rates for both methods are 5 percent.
Birth Control Pills
Birth control pills function by one or more of the following mechanisms: blocking sperm from entering the cervix, preventing ovulation or hampering embryo attachment to the lining of the uterus. Users take birth control pills daily, preferably at the same time of day.
The Patch
The patch operates by stopping the release of eggs by the ovaries. It also reduces the ability of sperm to join with eggs by thickening the cervical mucus. Users apply the patch to the upper body, lower abdomen, outer arm or buttocks. Users apply a new patch weekly for three consecutive weeks. Users skip the fourth week to have a period.
Side Effects of Birth Control Pills
Side effects related to use of birth control pills include bleeding between periods, headaches, nausea and weight gain.
Side Effects of the Patch
Side effects associated with use of the patch include menstrual cramps, abdominal pain, headaches, nausea and skin irritation.
Warning
Neither birth control pills nor the patch protect against sexually transmitted diseases.
