CAPRI
The Contraceptive API DatabaseA curated repository of information on active pharmaceutical ingredients (APIs) used in contraceptives
Select Category Below to Browse APIs
-
Estradiol
Estradiol (E2) is a natural estrogen and the primary female sex hormone. E2 and its esters, including estradiol cypionate and estradiol valerate, are used in…
-
Estradiol Cypionate
Estradiol Cypionate (EV or E2V) is an ester prodrug of estradiol and is used in place of estradiol in some medications.
-
Estradiol Valerate
Estradiol Valerate (EV, E2V) is an ester prodrug of estradiol and is used in place of estradiol in some medications.
-
Ethinyl Estradiol
Ethinyl estradiol (EE) is a synthetic estrogen derivative used alongside progestins in a large majority of combined oral contraceptives for better cycle control and to…
-
Mestranol
Mestranol (EEME) is a synthetic steroidal estrogen and a biologically inactive prodrug of ethinyl estradiol. It is used alongside progestins in combined oral contraceptives and…
-
Quinestrol
Quinestrol is a synthetic estrogen and prodrug of ethinyl estradiol. It is used in hormone replacement therapy and in the treatment of some cancers, as…
-
Chlormadinone Acetate
Chlormadinone acetate (CMA) is a progestin and antiandrogen. It is used in combined oral contraceptives and in treating gynecological disorders.
-
Cyproterone Acetate
Cyproterone Acetate (CPA) is a steroidal progestogen and potent antiandrogen. It is used in oral contraceptives, as a component of hormone therapy, and in the…
-
Desogestrel
Desogestrel (DSG) is a synthetic progestin and prodrug of etonogestrel (ENG), derived from testosterone and used in hormonal contraceptives. DSG is primarily used in oral…
-
Dienogest
Dienogest (DNG) is a progestogen used in hormonal contraceptives and for the treatment of endometriosis.
-
Drospirenone
Drospirenone (DRSP) is a synthetic progestogen used in combined oral contraceptives and hormone replacement therapy. Unlike other progestins, DRSP is a spirolactone, instead of a…
-
Ethynodiol Diacetate
Ethynodiol diacetate is a synthetic progestogen used in hormonal contraceptives. It is a prodrug of ethynodiol, which is a prodrug of norethindrone.
-
Etonogestrel
Etonogestrel (ENG) is a synthetic progestin derived from testosterone and used in hormonal contraceptives. Etonogestrel is primarily used in implants and vaginal rings, while its…
-
Gestodene
Gestodene (GSD) is a synthetic progestogen used in combined oral contraceptives. It is available in Europe but not the US.
-
Levonorgestrel
Levonorgestrel (LNG) is a synthetic progestational hormone used in hormonal contraceptives and as a component in hormone replacement therapy. It is the biologically active form…
-
Lynestrenol
Lynestrenol is a synthetic progestogen used in oral contraceptives and treatments of other disorders. It is a prodrug of norethindrone, therefore its pharmacology is almost…
-
Medroxyprogesterone Acetate
Medroxyprogesterone acetate (MPA) is a synthetic progestogen used in hormonal contraceptives, as a component in hormone replacement therapy, and in treatment for various other medical…
-
Megestrol Acetate
Megestrol Acetate (MGA) is a synthetic progestogen that was formerly used in combined oral contraceptives. It is currently used as an appetite stimulant and in…
-
Nestorone
Nestorone (NES) is a synthetic progestogen designed with high specificity for the progesterone receptor. It is being investigated for use in hormonal contraceptives but is…
-
Nomegestrol Acetate
Nomegestrol acetate (NOMAC) is a synthetic progestogen used in hormonal contraceptives, hormone replacement therapy, and for the treatment of gynecological disorders. It is available internationally,…
-
Norelgestromin
Norelgestromin (NGMN) is a synthetic progestogen used in combined oral contraceptives and in menopausal hormonal therapy. It is the primary metabolite of norgestimate.
-
Norethindrone
Norethindrone (NET), or norethisterone, is a synthetic progestogen derived from testosterone and used in hormonal contraceptives, hormone replacement therapy, and treatment of gynecological disorders. Prodrugs…
-
Norethindrone Acetate
Norethindrone acetate (NETA), or norethisterone acetate, is an ester prodrug of norethindrone. It is a synthetic progestogen used in place of norethindrone in some hormonal…
-
Norethindrone Enanthate
Norethindrone enanthate (NETE), or norethisterone enanthate, is an ester prodrug of norethindrone. It is a synthetic progestogen used in place of norethindrone in some hormonal…
-
Norethynodrel
Norethynodrel (NOR) is a synthetic progestogen used in hormonal contraceptives and for the treatment of gynecological disorders. It is generally no longer used. It is…
-
Norgestimate
Norgestimate is a synthetic progestogen used in combined oral contraceptives and hormone replacement therapy. It is a prodrug of norelgestromin, and, to a much lesser…
-
Norgestrel
Norgestrel is a synthetic progestogen used in combined oral contraceptives. It is a racemic mix of the stereoisomers dextronorgestrel and levonorgestrel. As dextronorgestrel is biologically…