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Hormonal Methods

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Effectiveness:

99.8% Perfect Use 94% Typical Use

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Lecture Notes

The birth control patch, brand name Ortho Evra, is a thin, beige, plastic transdermal reversible method of birth control. It releases synthetic estrogen and progestin to protect against pregnancy for 1 month. Each week for 3 consecutive weeks, one patch is removed and a new one is applied. One week of the month is ‘patch-free' which is when menstruation occurs. The sticker should be applied on the lower abdomen, buttocks, upper arm, or upper torso, but not on the breast.

 

The combination of hormones work the same way as oral contraceptives do. The patch is most effective when it is changed on the same day of the week for 3 consecutive weeks. Pregnancy can happen if an error is made when using the patch, especially if it becomes loose for longer than 24 hours, falls off, or if the same patch is left on for more than 1 week.

 

Its advantages include regular and lighter shorter periods, the ability to become pregnant returns quickly upon discontinuance, and it does not interfere with sex. Also, you don't have to remember to take it every day as you do with oral contraceptives. Disadvantages include headache, nausea, application site reaction, breast discomfort, upper respiratory tract infections, dysmenorrhea, and abdominal pain.

 

The patch has received criticism by the FDA, arguing that it exposes women to higher levels of estrogen than most birth control pills, thus increasing the risk of blood clots.

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