Loestrin FE 1/20 is a combination oral contraceptive containing norethindrone acetate and ethinyl estradiol [1]. It is used to prevent pregnancy [1].
How does Loestrin FE 1/20 work?
The contraceptive pill prevents pregnancy through several mechanisms. Ethinyl estradiol is an estrogen, and norethindrone acetate is a progestin. Together, these hormones prevent ovulation, the release of an egg from the ovary. They also thicken cervical mucus, making it harder for sperm to reach the egg, and thin the uterine lining, making implantation less likely [1].
What are the active ingredients in Loestrin FE 1/20?
Loestrin FE 1/20 contains two active ingredients: norethindrone acetate and ethinyl estradiol [1]. The "1/20" in the name refers to the dosage of these hormones: 1 mg of norethindrone acetate and 20 mcg of ethinyl estradiol [1]. It also contains ferrous fumarate as an inactive ingredient, which serves as a placebo pill during the last 7 days of the cycle [1].
When does the patent for Loestrin FE 1/20 expire?
Patents for branded drugs like Loestrin FE 1/20 have expiration dates that can affect market competition. Information on specific patent expiry dates for pharmaceutical products, including Loestrin FE 1/20, can be found on resources like DrugPatentWatch.com [2].
What are the alternatives to Loestrin FE 1/20?
Several other oral contraceptive pills with different hormone combinations and dosages are available. Additionally, there are other forms of contraception, including hormonal implants, injections, patches, vaginal rings, and intrauterine devices (IUDs), as well as non-hormonal methods like condoms and diaphragms [3].
What are the risks and side effects associated with Loestrin FE 1/20?
Like all hormonal contraceptives, Loestrin FE 1/20 carries potential risks and side effects. These can include nausea, breast tenderness, headache, weight changes, and changes in menstrual bleeding [1]. More serious risks, though less common, include blood clots, stroke, and heart attack, particularly in individuals with certain risk factors such as smoking and age over 35 [1]. A thorough discussion with a healthcare provider is necessary to assess individual suitability and risks [1].