Search results
Results from the WOW.Com Content Network
Norethisterone is a very weak inhibitor of CYP2C9 and CYP3A4 (IC 50 = 46 μM and 51 μM, respectively), but these actions require very high concentrations of norethisterone that are far above therapeutic circulating levels (which are in the nanomolar range) and hence are probably not clinically relevant.
Norethisterone and ethinylestradiol levels over 24 hours after a single oral dose of 10 mg NETA in postmenopausal women. [ 25 ] NETA metabolizes into ethinylestradiol at a rate of 0.20 to 0.33% across a dose range of 10 to 40 mg. [ 26 ] [ 27 ] Peak levels of ethinylestradiol with a 10, 20, or 40 mg dose of NETA were 58, 178, and 231 pg/mL ...
Levonorgestrel is a hormonal medication which is used in a number of birth control methods. [3] [7] It is combined with an estrogen to make combination birth control pills. [8]As an emergency birth control, sold under the brand names Plan B One-Step and Julie, among others, it is useful within 72 hours of unprotected sex.
The ovulation-inhibiting dose of norgestrel appears to be greater than 75 μg/day, as ovulation occurred in 50 to 75% of cycles with this dosage of norgestrel in studies. [17] The ovulation-inhibiting dosage of levonorgestrel, which is twice as potent as norgestrel, is approximately 50 to 60 μg/day.
Estradiol cypionate 5 mg + levonorgestrel butanoate 7 mg in an aqueous suspension [16] Estradiol benzoate 5 to 10 mg + norethisterone enanthate 50 to 100 mg [62] Mestranol 1.0–1.2 mg + norethisterone 10–12 mg in a microcrystalline aqueous suspension of defined particle sizes (125–177 μm) [25] [16] [62] [32] Ethinylestradiol ...
Hormone levels following a single intramuscular injection of EV/NETE (5 mg/50 mg) in healthy young men. [9] Testosterone levels were maximally suppressed by about 94%, to ~30 ng/dL, when measured at day 7. [9] EV/NETE is a combination of EV, an estrogen, and NETE, a progestogen with weak androgenic activity.
Norethisterone and ethinylestradiol levels over 8 weeks after a single intramuscular injection of 200 mg NETE in premenopausal women. [35] A single intramuscular injection of 50 to 200 mg NETE in oil solution has been found to have a duration of action of 11 to 52 days in terms of clinical biological effect in the uterus and on body temperature ...
In 2022, the combination of ethinylestradiol with norethisterone or with norethisterone acetate was the 80th most commonly prescribed medication in the United States, with more than 8 million prescriptions. [5] [6] It is available as a generic medication. [7]