Monday, July 7, 2014

The Pill - Still Not Just for Birth Control!

Catherine Bagley, DO
Commonwealth Ob/Gyn Specialists
In 1957, the medication now known as “the pill” was approved by the FDA for menstrual disorders. Coincidentally (or not), when the pill became available, thousands of women suddenly developed menstrual disorders. Three years later, the FDA officially approved the combined estrogen and progesterone pill for contraception. Today, over 100 million women are taking the pill worldwide and the question remains, are we taking full advantage of the benefits the pill has to offer?

The pill was the first medication approved by the FDA for long-term use in healthy patients and it still functions as a go-to drug for many different clinical situations. The pill works primarily through influencing the hormones that cycle in women naturally, estrogen and progesterone. There is a progesterone-only pill that works somewhat differently than the combined hormone pills and is an appropriate clinical choice for patients unable to take estrogen.

Estrogen stabilizes the uterine lining, reducing breakthrough bleeding and significantly lightening bleeding for each month that patients are on the pill. Eventually, researchers discovered that estrogen also inhibits the development of eggs and helps to prevent ovulation. This combination of effects resulted in a treatment for menstrual disorders as well as providing contraception. Today, there are many different combinations of the amount of estrogen as well as the amount and type of progesterone available in different medications, including a combination transdermal patch and a removable vaginal ring.

In the development of the pill, a hormone-free week was built into each month in order to provide the patient with reassurance that she was not pregnant. During this week, a patient may take placebo pills or no pills at all.  Typically, she will bleed during this week, and some patients will mistake this for a period, when it is not. The hormones in the pill prevented ovulation and stabilized the lining of the uterus; the bleeding that may occur is merely the uterus responding to the withdrawal of the hormones. When I counsel adolescent patients about the use of the pill, I often answer questions from patients’ mothers about the safety of continuous dosing, i.e. avoiding the week of inactive pills built into a typical four week pill pack. Historically, that week of bleeding was considered normal, but continuous dosing is very safe and is an excellent option for many patients. Some of the newest versions of combined pills are designed to minimize bleeding, representing a shift toward recognizing not only the safety of continuous use, but the importance of giving women more control over their cycles. 

For many women, periods interfere with school, life, and/or social activities.  Whether a woman suffers from heavy bleeding, painful periods, fatigue due to chronic anemia (because of heavy bleeding), headaches, or mood changes, the pill can often help alleviate those symptoms. Pelvic pain, either because of painful periods or other conditions, such as endometriosis or fibroids, is one of the leading causes of women missing school and work. Many patients who are treated with the pill are able to function at the level they were accustomed to prior to the pain. Continuous use of pills can resolve the symptoms of pre-menstrual dysphoric disorder for many patients.

Beyond controlling reproductive cycles, there are other benefits to the pill. These include: the potential to slow excess hair growth and acne because they suppress production of the male hormone, prevention of menstrual migraines, improving bone mineral density, normalizing irregular periods, and allowing women to avoid having their period at inconvenient times, such as during a business trip, vacation, or honeymoon.

The scientific evidence shows that the longer a woman uses the birth control pill, the lower her risk for developing endometrial and ovarian cancer later in life, up to 20 years after discontinuing use. The pill also seems to offer some short-term protection against colorectal cancer among current or recent users. Women using the pill for non-contraceptive benefits, generally return to fertility soon after discontinuing the medication. On the opposite side of the coin, women who have completed child bearing and may be entering the perimenopausal state can benefit from the hormone balance the combined pill provides. Because of recent legislative changes, most every financial barrier to the pill has been eliminated, which is terrific news for our patients.

All medications carry some degree of risk and it is important for patients to know whether or not the pill is safe for them. Early formulations of the pill contained high levels of hormones; the pills available today have approximately one third the amount of estrogen as the first version of the pill. Estrogen carries very specific risks that are increased in certain patient populations. Patients with a history of any bleeding disorders, especially venous thromboembolism (VTE), deep venous thrombosis (DVT), and/or pulmonary embolism (PE), are not candidates for combined pills. Patients who are over the age of 35 and are smokers are also not candidates for combined pills.  For these patients, the estrogen in the pill increases their risk of developing blood clots.

In addition to the medical risks that medications carry, there are typically side effects that can dictate whether or not someone is able to tolerate a medication that has been deemed clinically appropriate and safe for that patient.   Side effects of the pill are interesting because some of them are the very symptoms that the pill helps to improve.  They can include: nausea, vomiting, hypertension, headaches, mood changes, and alterations in libido. If patients fail therapy with the pill, there are other options. With advances in minimally invasive operative technology, in addition to procedures that have been performed for many years, definitive surgical treatment is available to some patients. However, not every patient is an ideal surgical candidate; for those patients as well as the patients who want to avoid surgery, a different version of the pill (or a different delivery method of the combined hormones) may be a viable alternative.  


For further inquiries about the pill, contraception or general gynecology, contact Catherine Bagley, DO, of Commonwealth Ob/GynSpecialists at 804.285.8806, or visit their website at commonwealth-obgyn.com.

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