Emergency contraception should have medical advice. If done improperly, could have long-term effects.
Emergency contraception should be used sparingly. Their frequent use can not only decrease the effectiveness of the method but changing patterns of ovulation, inhibit or delay ", which makes the calculation of the fertile days.
must be prescribed by a physician, since the aim is to discover why it is used. Ideally, do it only once, more than two-and the next month to start planning. If, however, used with intervals of less than two months, the effects are not expected in women: according to Juan Carlos Ramirez Profamilia gynecologist, may be come to form cysts in the ovaries (for ovulations were arrested), had retention fluid, breast discomfort, headache or altered menstrual period (stop coming or come very often, bleeding or absence of menstruation).
"It is not logical to use it frequently, as it should be understood as a method of emergency planning. If used only once, it messes up the natural behavior of the ovaries temporarily and conforms to the following cycle again. But in doing so continuously, it is possible that other hormones alter different from ovulation and has, for example, absence of menstrual periods, inadequate growth of the endometrium or compromise of the skeletal system, "said Cecilia Hernandez, OB / GYN specialist in reproductive medicine.
and side effects How does
Emergency contraception works as follows: alter ovulation or after it processes and produces changes in the cervical mucus to prevent sperm rise (makes impenetrable) and prevents implantation of the fertilized egg. Side effects may include nausea, vomiting, headache and sinus congestion that last more than 24 hours after ingesting the drug. "There may also be changes in the menstrual cycle: a half of them women arrives at the expected time period, to 23 percent they can forward five days and a 27 delay of five days," says Juan Carlos Vargas , a gynecologist at Profamilia.
If taken when the endometrium is grown, it is possible to submit an initial bleeding, which is usually abundant, and then one later. Menstrual changes vary with the time of the cycle the pills are ingested, says Vargas.
is recommended to take these pills as soon as possible to sexual intercourse within 72 hours. A study by the World Health Organization (WHO) showed, even an effective up to 120 hours, but between 73 and 120 hours there was a duplication of pregnancies (2.6 percent) compared to the first 72 hours
a small percentage of pregnancies was 1.64.
Two Methods forms of emergency contraception: the Yuzpe regimen and the morning after pill. The first, dating back to the 90, consists of taking four pills every 12 hours in two doses.
However, because not all tablets bring the same amount of progesterone and estrogen is recommended that you visit a gynecologist if you wish to use the Yuzpe method, which can cause side effects such as dizziness, vomiting and general malaise .
"Many have boxes at home and take birth control two or four pills every 12 hours (Yuzpe method), led by pharmaceuticals, not to resort to the day after" Juan Carlos Ramírez points.
The second form, which is more effective, is based on the intake of 2 pastas, 1 every 12 hours or in a single dose, as recommended by WHO.
Until 2 years ago when there was only Profamilia brand marketed, sold, on average, 200 cases a day in the morning after pill, after entering the pharmaceutical market in 2001. With the emergence of different brands, now sold in many pharmacies without requiring a prescription.
component of the 'morning after pill' is levonorgestrel, a synthetic derivative of the hormone progesterone, which women occurs after ovulation and maintains pregnancy.
The morning after pill free of medical contraindications, provided they do not take on a recurring basis. It is a well tolerated medication. Menstruation
The hypothalamus and pituitary secretes hormones that act on the ovary and stimulates the growth of one of their follicles. Cuad it matures, it bursts and releases an egg, while the ovary produces estrogen that feed the uterus and make your lining (endometrium) becomes a lush bed, fit and ready for a fertilized egg nest.
also alter the consistency of cervical mucus, which becomes transparent and receptive to sperm. The cervix also softens when fertile.
menstrual cycle lasts on average 28 days. Ovulation, which occurs at the middle of each cycle lasts for 36 hours. If the egg is not fertilized, it disintegrates and is absorbed. If no fertilization occurs bleeding.