As a hormonal birth control pill, Lo Loestrin Fe combines two hormones: norethindrone acetate (a progestin) and ethinyl estradiol (an estrogen). Lo Loestrin Fe work to help prevent pregnancy by:
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preventing ovulation
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making it more difficult for sperm to get through the cervix to the uterus
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making it harder for a fertilized egg to implant in the uterus
Aside from being a birth control method, there are other benefits of Lo Loestrin Fe:
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Lighter and shorter periods
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Reduced severe menstrual periods and cramps
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Reduced acne breakouts
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Decreased anemia