Estradiol hexahydrobenzoate/hydroxyprogesterone caproate/testosterone hexahydrobenzoate

Estradiol hexahydrobenzoate/hydroxyprogesterone caproate/testosterone hexahydrobenzoate (EHHB/OHPC/THHB), sold under the brand name Trinestril AP, is an injectable combination medication of estradiol hexahydrobenzoate (EHHB), an estrogen, hydroxyprogesterone caproate (OHPC), a progestogen, and testosterone hexahydrobenzoate (THHB), an androgen/anabolic steroid.^[1] It contained 3 mg EHHB, 75 mg OHPC, and 100 mg THHB and was administered by intramuscular injection once per month.^[1] The medication was marketed by 1957.^[2]

EHHB/OHPC/THHB

Combination of
Estradiol hexahydrobenzoate	Estrogen
Hydroxyprogesterone caproate	Progestogen
Testosterone hexahydrobenzoate	Androgen; Anabolic steroid
Clinical data
Trade names	Trinestril AP
Other names	EHHB/OHPC/THHB
Routes of administration	Intramuscular injection

See also

• List of combined sex-hormonal preparations § Estrogens, progestogens, and androgens