避孕贴片
避孕贴片与一块标识牌相似，约有5厘米(7.75英寸)见方，被贴在肩背部、下腹部或躯干（除乳房外）上。在这些部位，它持续释放孕激素和雌激素，通过皮肤吸收进入血液循环。既然这种吸收激素的方式绕过了消化道，它是一种受到有胃肠功能症状的女性欢迎的避孕方式。贴片的有效期为一周，此后在总数三周的时间里得更换两次。紧随着的第四周为“贴片空闲期”（不需要贴贴片时间——译者注），为行经期。其后，又连续地使用三周贴片，与此类推。多数情况下，每周更换一张贴片比每日吃一粒避孕药要方便得多。不过，避孕贴片可能的副作用与避孕药相同，既不是所有的女性都能够用-也不是所有的妇女所应该用的方法。遵照医嘱和在医生的监察下使用是必要的。
避孕效果：非常有效。 |
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Contraception
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Methods
of Contraception: Contraceptive
Methods for Women
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Contraceptive Patch
The contraceptive patch is similar to a band aid. It is a square patch of ca. 5 cm (1.75 inch) placed on the shoulder, the lower abdomen or the torso (excluding the breasts) where it continuously releases progestin and estrogen through the skin into the blood stream. Since this bypasses the digestive tract, it is a welcome method for women who have stomach problems. The patch is effective for one week, after which it has to be replaced twice for a total of three weeks. This is followed by a fourth “patch-free” week to allow for the woman’s menstrual period. Thereafter, the patches are applied again for three weeks in a row etc. In many ways, changing a patch one a week is more practical than taking a pill every day. However, the possible side effects of the patch are the same as that of the pill, and not all women can or should use either. A doctor’s advice and supervision are essential.
Effectiveness: Very effective |
