Estradiol diundecylate/hydroxyprogesterone heptanoate/testosterone cyclohexylpropionate (EDU/OHPH/TCHP), sold under the brand name Trioestrine Retard, is an

injectable An injection (often and usually referred to as a "shot" in US English, a "jab" in UK English, or a "jag" in Scottish English and Scots) is the act of administering a liquid, especially a drug, into a person's body using a needle (usually a hypo ...

combination medication A combination drug or a fixed-dose combination (FDC) is a medicine that includes two or more active ingredients combined in a single dosage form. Terms like "combination drug" or "combination drug product" can be common shorthand for a FDC prod ...

estradiol diundecylate Estradiol diundecylate (brand name Estrolent), or estradiol diundecanoate, also known as 17β-estradiol 3,17β-diundecylate, is an estrogen and an estrogen ester – specifically, the 3,17β-di undecylate ester of estradiol – which has been ma ...

(EDU), an

estrogen Estrogen or oestrogen is a category of sex hormone responsible for the development and regulation of the female reproductive system and secondary sex characteristics. There are three major endogenous estrogens that have estrogenic hormonal acti ...

hydroxyprogesterone heptanoate Hydroxyprogesterone heptanoate (OHPH), also known as hydroxyprogesterone enanthate (OHPE) and sold under the brand names H.O.P., Lutogil A.P., and Lutogyl A.P. among others, is a progestin medication used for progestogenic indications. It has b ...

(OHPH), a

progestogen Progestogens, also sometimes written progestagens or gestagens, are a class of natural or synthetic steroid hormones that bind to and activate the progesterone receptors (PR). Progesterone is the major and most important progestogen in the body. ...

, and

testosterone cyclohexylpropionate Testosterone cyclohexylpropionate (TCHP; brand names Andromar, Femolone, Telipex Retard) is an androgen and anabolic steroid and a testosterone ester. See also * Estradiol diundecylate/hydroxyprogesterone heptanoate/testosterone cyclohexylpropio ...

(TCHP), an

androgen An androgen (from Greek ''andr-'', the stem of the word meaning "man") is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This inc ...

anabolic steroid Anabolic steroids, also known more properly as anabolic–androgenic steroids (AAS), are steroidal androgens that include natural androgens like testosterone (medication), testosterone as well as synthetic androgens that are structurally related ...

. It contained 2.25 mg EDU, 100 mg OHPH, and 67.5 mg TCHP in

oil solution An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic (does not mix with water) & lipophilic (mixes with other oils). Oils are usually flammable and surface active. Most oils are unsaturated ...

, was provided as

ampoule An ampoule (also ampul and ampule) is a small sealed vial which is used to contain and preserve a sample, usually a solid or liquid. Ampoules are usually made of glass. Modern ampoules are most commonly used to contain pharmaceuticals and chem ...

s, and was administered by

intramuscular injection Intramuscular injection, often abbreviated IM, is the injection of a substance into a muscle. In medicine, it is one of several methods for parenteral administration of medications. Intramuscular injection may be preferred because muscles have ...

. The medication was manufactured by Roussel and Théramex and was marketed by 1953. It is no longer available.
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References

Abandoned drugs Combined estrogen–progestogen–androgen formulations {{Genito-urinary-drug-stub