Trenbolone Acetate Androgenic Anabolic Steroids Bodybuilding Cutting Cycle Fat Loss Tren A CasNO.10161-34-9

Trenbolone was first synthesized in 1963 by Velluz et al.503 The drug appears to have been an early development project of Roussel-UCLAF. By the early 1970’s, it was being sold as an injectable (trenbolone acetate) in England by Hoechst as Finajet, and in France as Finaject by Roussel. Roussel AG in Germany was parent to both companies. Trenbolone acetate is a drug of veterinary medicine, although a longer-acting ester of trenbolone (see: Parabolan) was once sold for human consumption as well.

Trenbolone acetate is used, almost exclusively, to increase the rate of weight gain and improve feed efficiency of cattle shortly before slaughter. Essentially, the drug is utilized to increase product profitability, as measured in total pounds of salable meat. It is generally used right up to the point of slaughter, with no withholding period. Meat products sold in many areas of the world will often contain small amounts of residual trenbolone metabolites as a result of this practice.

Trenbolone acetate first became popular among U.S. bodybuilders during the 1980’s, a time when the drug was being smuggled in from Europe in high volume. It was identified (rightly so) as a powerful anabolic and androgenic agent, and quickly became a drug of choice among American competitive bodybuilders. Although extremely hot for a brief period of time, the supply of trenbolone acetate ended abruptly in 1987, as Hoechst-Roussel decided to voluntarily discontinue sale of all injectable forms of this medication. Although unconfirmed, the growing public concern about sports doping likely had much to do with this decision, as the discontinuation of “controversial” steroids was very common during the late 1980’s and early 1990’s. This event marked the end of legitimate medicines containing trenbolone acetate for injection.

Around the same time as we were seeing the demise of Finajet and Finaject, Hoechst-Roussell was introducing trenbolone acetate to the U.S. market as Finaplix cattle implant pellets. This came subsequent to the FDA’s approval for such products in 1987 . The pellets were designed for subcutaneous implantation into the ear of the cattle with a handheld implant gun, and are far too large to be implanted in humans without minor surgery. Remarkably, trenbolone acetate pellets are exempt from U.S. controlled substance laws. This is presumably to make it easy and affordable for livestock owners to have access to the growth-promoting agent. If a veterinarian were needed every time these products were to be used, they might be too troublesome or cost prohibitive to consider. Admittedly, since these products come in the form of pellets, they are not in a form suitable for human consumption either, making their exemption seem a little more reasonable than at first glance.

Human administration of Finaplix pellets can be difficult to accomplish, but it is still widely done. Most commonly, two to four implant pellets are ground up and mixed with a 50/50 water and DMSO solution, which is applied to the skin daily. This home-brew transdermal mix is effective, but also tends to carry a strong odor of garlic (an effect of the DMSO). Others simply grind up a few pellets with the back of a spoon and inhale (snort) them. Here, the drug enters the blood stream through the mucous membrane, a poor but still useful means of delivery for steroid hormones. Those who have tried this often claim it is not as irritating as they had imagined it would be. Alternately, some athletes opt to simply consume the drug orally. Although not an ideal mode of delivery, trenbolone displays a moderate level of oral bioavailability, and can be used in this manner given adequate dosing.

More adventurous individuals have made it a practice to mix their own injections with Finaplix. The pellets are ground into a fine powder (usually anywhere from 2 to 6 pellets), and then are added to sterile water, propylene glycol, or an oil-based injectable steroid or veterinary vitamin. This is usually repeated twice weekly, although some do manage to undertake this practice more frequently. Since this is not being done in a controlled sterile environment, however, one is obviously risking infection (or worse) by doing this. Starting in the late 1990’s, some stores began selling kits that contain all the necessary ingredients to separate the binders from the active steroid and brew a relatively pure injectable. These kits have grown in popularity over the years, and are usually reviewed favorably, although are not considered a substitute for sterile pharmaceutical medications. 

Finaplix? is presently available in the U.S. and some markets abroad, although it is now being sold by Intervet instead of Hoechst-Roussel Agri-vet. This product comes in two forms, Finaplix-H and Finaplix-S, which denotes if the product was intended for a Heifer or a Steer respectively. The total dosages of both products are different, with the “H” version containing 100 20 mg trenbolone acetate pellets (2,000 mg) and the “S” version only 70 (1,400 mg). Ivy Animal Health (U.S.) has introduced two competing products of equivalent makeup as well, sold as Component-TH and Component-TS. There are also the Revalor and Synovex+ brands that contain trenbolone acetate with an added (usually unwanted) dose of estrogen. Additionally, although no other legitimate medicines containing trenbolone acetate exist, the drug is produced (for injection and oral use) by a number of export and underground steroid manufacturers.