Precision Gear Works offer two versions of this drug, one being Tren 150 which is dosed at 150mg/ml and contains the Enanthate ester and Tren-Ace 80 which is dosed at 80mg/ml of the Trenbolone acetate ester. Dosage on the acetate ester ranges from around 40mg every day or 80 every other day right up to 80mg every day or 160mg every other day, some users have reported dosages at 200mg ED and, while I think that is just crazy if you compare the anabolic/androgenic ratio to a powerful hormone such as testosterone you will see why. If you are using the Enanthate base you will be looking at around at around 2ml per week, which would be around 300mg of the drug. I would suggest starting off on the Ace version and seeing how your body responds to Tren, the last thing you want is a long ester at work when you start to develop some really nasty side effects.
Injectable steroids are injected into muscle tissue, not into the veins. They are slowly released from the muscles into the rest of the body, and may be detectable for months after last use. Injectable steroids can be oil-based or water-based. Injectable anabolic steroids which are oil-based have longer half-life than water-based steroids. Both steroid types have much longer half-lives than oral anabolic steroids. And this is proving to be a drawback for injectables as they have high probability of being detected in drug screening since their clearance times tend to be longer than orals. Athletes resolve this problem by using injectable testosterone early in the cycle then switch to orals when approaching the end of the cycle and drug testing is imminent.
Some bodybuilders and athletes use trenbolone esters for their muscle-building and otherwise performance-enhancing effects.  Such use is illegal in the United States and many other countries. The DEA classifies trenbolone and its esters as Schedule III controlled substances under the Controlled Substances Act .  Trenbolone is classified as a Schedule 4 drug in Canada  and a class C drug with no penalty for personal use or possession in the United Kingdom .  Use or possession of steroids without a prescription is a crime in Australia .