避孕針劑
肌內避孕藥注射在許多國家都可運用。依據被注射的激素及其劑量不同，避孕針劑每月或每三個月注射一次，注射部位為臀部或上臂（三角肌——譯者注）。被注射進肌肉組織以後，激素緩慢地被吸收，這樣注射一次會維持避孕數周或數月。但是，恰好與口服避孕藥一樣，避孕針劑對某些婦女可能有討厭的副作用，所以，不應該不加選擇地注射避孕針劑。使用之前需要做細緻的醫學檢查並得到醫生的指導。不是每一個婦女都喜歡這種避孕方法。
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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Injections
In many countries intramuscular contraceptive injections are available. Hormones are injected in the buttocks or arms and are repeated either once a month or every three months, depending on the hormones and doses injected. Deposited in muscle tissue, they are absorbed slowly and thus keep preventing pregnancies for weeks or months at a time. However, just as in oral contraceptives, there may be some unpleasant side effects for some women, and therefore these injections should not be used indiscriminately. A careful medical examination and a doctor’s supervision are necessary. This method is not for every woman.
Effectiveness: Very effective |
