Yasmin is a birth control medication approved for the prevention of pregnancy. It is composed of two hormones -- drospirenone and ethinyl estradiol -- which work in combination to prevent pregnancy through different mechanisms.

Female birth control pills are intended to prevent contraception in women. They are most often a combination of synthetic forms of both types of female hormones, estrogen and progesterone.

Ortho Tri-Cyclen Lo is an oral contraceptive containing norgestimate and ethinyl estradiol, two synthetic forms of female hormones.

Dermatologists believe hormones cause acne, and teenagers who get acne as their hormones awaken in puberty probably would agree. But teens aren't the only ones to suffer from pimples--adult women often see breakouts prior to their menstrual periods or when they get pregnant, according to the Cleveland Clinic.

Iron deficiency frequently occurs in women of childbearing age. Women of reproductive age have higher iron requirements than post-menopausal women or men, because they lose blood every month during their menstrual periods.

Birth control pills, or oral contraceptives, contain female hormones that suppress ovulation--the monthly release of an egg from the ovary. Suppressing ovulation prevents pregnancy because without an egg, conception cannot occur.

Birth control pills can be obtained easily without insurance, but the cost may be high. Having health insurance can reduce the cost of the cervical exam that is performed once per year before a prescription for birth control is provided. Health insurance can also reduce the cost of the pills themselves.

Yaz is a prescription birth control pill containing drospirenone and ethinyl estradiol. The medication works to prevent the ovary from releasing an egg during the menstrual cycle and changes the lining of the cervix and uterus so a fertilized egg will experience difficulty implanting in the uterus.

Approximately 99 percent of obstetricians and gynecologists believe that suppressing a menstrual period through the use of birth control pills is safe, according to a 2003 Gallop survey conducted by the American Congress of Obstetricians and Gynecologists.

The average length of your menstrual cycle, defined as the first day of menstrual bleeding to the first day of the next menstrual period, is 28 days. But the University of Michigan Health System says that the length of a cycle can vary from 21 to 35 or even 45 days.

Taking vitamin B-6 supplements will not cause birth control pills to lose their effectiveness. In fact, increasing your intake of vitamin B-6 while taking the pill may even prove beneficial, as birth control pills may lower levels of vitamin B-6 in the body for some women.

The combination of caffeine and birth control pills may generate a few mild side effects, including headaches, jitteriness and insomnia. Caffeine and birth control pills may also interact with other prescribed medications.