使用长效避孕针的4大注意事项Q最近朋友向李女士推荐了一种长效避孕针,她想了解一下这种避孕方式的使用注意事项。A女用长效避孕针是以孕激素为主,配以少量雌激素的长效避孕针剂。它可制成脂溶性或水混悬液,肌肉注射后药物贮存于局部,然后缓慢释放,以发挥长效避孕的作用。其避孕原理为抑制排卵或改变子宫内膜及宫颈黏液,使其不利于受精卵着床而达到避 4 major precautions to use long-acting contraceptives Q Recently, a friend recommended a long-acting contraceptive to Ms. Lee, she would like to know about the use of this contraceptive precautions. A female long-acting contraception is progesterone-based, together with a small amount of estrogen long-acting contraceptives. It can be made into fat-soluble or aqueous suspension, the medicine is stored locally after intramuscular injection, and then released slowly to exert the effect of long-term contraception. The principle of contraception to inhibit ovulation or change the endometrium and cervical mucus, so that it is not conducive to implantation of fertilized eggs and avoid