Mirena contains levonorgestrel, similar to natural progesterone which inhibits follicle growth and changes cervical mucus to inhibit sperm. Use this intrauterine device to help prevent pregnancy with 99% effectiveness, reducing the chance of ovulation and of sperm reaching an egg. Insert this device for contraception that lasts up to five years, removed at any time to restore fertility within about a year.
52mg 1 IUD
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