Trenbolone is a synthetic anabolic steroid related to nandrolone (19-nortestosterone). In the US, FDA has approved it only as an ear implant for beef cattle; we found no FDA-approved trenbolone injection for people or animals.
Also known as: Trenbolone acetate, Trenbolone enanthate, Tren.
There is no FDA-approved trenbolone injection, so there is no label strength to quote. Check the strength printed on your vial; the math below uses 100 mg/mL only as an example. Injectable trenbolone is already a liquid, so there is nothing to mix.
Trenbolone is already a solution, so there is no mixing. The only math is turning an amount in mg into a volume. Here it is at 100 mg/mL for 50 mg.
50 mg ÷ 100 mg/mL = 0.5 mL0.5 mL × 100 = 50 units| Amount | Volume | U-100 syringe |
|---|---|---|
| 25 mg | 0.25 mL | 25 units |
| 50 mg | 0.5 mL | 50 units |
| 75 mg | 0.75 mL | 75 units |
| 100 mg | 1 mL | 100 units |
FDA's animal drug rules list trenbolone acetate only as pellets implanted under the skin of the ear in growing beef cattle, alone or combined with estradiol, to improve weight gain and feed efficiency. We found no trenbolone product for people in FDA's Drugs@FDA database.
Anabolic steroids are Schedule III controlled substances in the US, and this one is named in the federal list (21 CFR 1308.13(f)). Having it without a valid prescription is illegal. The DEA definition leaves out steroids approved as implants for cattle, but anyone who prescribes, dispenses or distributes such a steroid for human use is treated as handling a controlled anabolic steroid. It is on the World Anti-Doping Agency (WADA) Prohibited List as an anabolic agent, banned in and out of competition.
There is no FDA label for people, so there are no label warnings to quote; the harms below are the ones the cited studies report. In the Global Drug Survey 2024, men who had injected trenbolone in the past year reported mood swings, irritability and depressive symptoms, and heart and liver concerns, more often than men who used other anabolic steroids but not trenbolone (Bonenti 2026). In a 2024 survey of 282 men using anabolic steroids, a higher trenbolone dose was linked to more verbal aggression (Piatkowski 2024). Both are self-report surveys, not trials.
Dose Track has trenbolone acetate and trenbolone enanthate as separate built-in compounds, so you can log whichever ester is on your vial.
We found no published study that measured trenbolone acetate or trenbolone enanthate levels in people, so we do not list the app's modeling values (24 hours and 12 hours for the acetate, 6 days and 48 hours for the enanthate). Figures quoted online are not from human studies we could check.
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