Estrone/progesterone/testosterone

Estrone/progesterone/testosterone (E1/P4/T), sold under the brand name Tristeron or Tristerone, is an injectable combination medication of estrone (E1), an estrogen, progesterone (P4), a progestogen, and testosterone (T), an androgen/anabolic steroid, which was used in the treatment of functional uterine bleeding in women. It contained 6 mg estrone, 50 mg progesterone, and 25 mg testosterone in microcrystalline aqueous suspension and was administered by intramuscular injection. The medication was manufactured by Wyeth and was marketed by 1951. It is no longer available.