It is derived from the human hormone progesterone. It prevents fertilization and increases the rate of transport of eggs from the fallopian tubes to the uterus in female ferrets when administered prior to ovulation.
Norethindrone is a progestin (a synthetic substance with properties similar to progesterone) that is best known as the first female oral contraceptive, or the “pill.”
17-Εstradiol and its selective receptor, ER-X, are not part of a classical hormone/receptor endocrine system but of a system with important autocrine/paracrine functions in the developing and adult brain.
Epinephrine bitartrate is the bitartrate salt form of epinephrine, a direct-acting sympathomimetic amine with bronchodilator and vasoconstricting activity.
17beta-estradiol 3-benzoate is a benzoate ester resulting from the formal condensation of benzoic acid with the phenolic hydroxy group of 17beta-estradiol.
