Parabolan is often associated with Finajet. Finejet is a veterinary steroid and contains trenbolone acetate which is very fast acting. Parabolan, however, contains trenbolone hexahydrobenzylcarbonate. This ester makes Parabolan long lasting (up to two weeks or more) and a better option for human use.

Parabolan has no estrogenic activity and it is five times stronger than testosterone as both an anabolic and an androgenic Another great characteristic of Parabolan is that it binds quite will to the androgen receptors, which promote growth of the muscle cells and burning of fat cells. Additionally, Parabolan also binds to the glucocoticoid receptors. Glucocorticoid hormones are what tell the muscles to release protein (catabolism). When Parabolan binds to the glucocotoid receptors, it actually reduces catabolism (a good thing).

Parabolan is also considered a nutrient partitioning agent. What this means is that it has the ability to convert more food into muscle and less into fat.
Side Effects of Parabolan
That was the good news. The bad news is that there are negative side effects to using Parabolan:

There are reports of sexual dysfunction (which can be subsided if you stack Parabolan with testosterone) and gynocomastia. Gynocomastia symptoms include bloating and an increase in breast tissue. On the opposite note, it's not necessarily a great choice for women because it can have strong virilizing effects on women.

It can also lower thyroid levels, so it's important to take a T3 to minimize the effects of this.

Parabolan is also known to increase aggression. People may like this when it helps them prepare for and compete in and event, but it's not an isolated aggression and can affect all aspects of life.

Coughs, insomnia and night sweats and decreased cardiovascular capacity are also common.