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It contains ethinylestradiol, an estrogen, and etonogestrel, a progestin. [2] It is used by insertion into the vagina. [1] Pregnancy occurs in about 0.3% of women with perfect use and 9% of women with typical use. [3] Common side effects include irregular vaginal bleeding, nausea, sore breasts, vaginitis, mood changes, and headache. [4]
Etonogestrel is a progestin, or a synthetic progestogen, and hence is an agonist of the progesterone receptor, the biological target of progestogens like progesterone. [16] It works by stopping ovulation , thickening the mucus around the opening of the cervix , and altering the lining of the uterus . [ 17 ]
Diestrus lasts approximately 56 to 60 days in a pregnant female, and 60 to 100 days in a non-pregnant female. During both of these periods, progesterone levels are high. Because the hormonal profile of a pregnant female and a female in diestrus are the same, sometimes a non-pregnant female will go through a period of pseudopregnancy.
[1] [2] Other side effects of progestogens may include an increased risk of breast cancer, cardiovascular disease, and blood clots. [2] At high doses, progestogens can cause low sex hormone levels and associated side effects like sexual dysfunction and an increased risk of bone fractures. [3]
Progestogen-only contraception (or progestin-only contraception) relies on progestogens alone to achieve contraception. [1] It is one of the two major types of hormonal contraception , with the other major type being combined hormonal contraceptive methods (including both estrogen and a progestogen). [ 1 ]
Allow the dog only a couple of laps of water until the temperature begins to drop to a more normal level. Do not allow a dog to gulp large quantities of water. If a dog is panting excessively and then drinks a lot of water, large amounts of air may be swallowed along with the water and this can cause an equally life-threatening case of gastric ...
Progestogen-only injectable contraceptives (POICs) are a form of hormonal contraception and progestogen-only contraception that are administered by injection and providing long-lasting birth control. [ 2 ] [ 3 ] As opposed to combined injectable contraceptives , they contain only a progestogen without an estrogen , and include two progestin ...
Altrenogest, sold under the brand names Swinemate and Altren manufactured by Aurora Pharmaceutical and Regumate manufactured by Merck, is a progestin of the 19-nortestosterone group which is widely used in veterinary medicine to suppress or synchronize estrus in horses and pigs.