Often referred to as Tren Ace or Tren-A has a half life of around 48 hours, due to its short half life Tren Ace needs to be injected a minimum of every second day. Most people choose to use Tren Ace in cutting cycles accompanied with other fast acting steroids such as Testosterone Propionate and Winstrol . Trenbolone acetate usually comes in 10ml vials dosed between 80 and 100mg/ml. Due to the many harsh side effects that come with using Trenbolone, many users choose to use the Acetate version so that they can discontinue use if needed and within a few days the side effects will start disappearing.
Heavy consumption of the essential amino acid lysine (as indicated in the treatment of cold sores) has allegedly shown false positives in some and was cited by American shotputter C. J. Hunter as the reason for his positive test, though in 2004 he admitted to a federal grand jury that he had injected nandrolone.  A possible cause of incorrect urine test results is the presence of metabolites from other AAS, though modern urinalysis can usually determine the exact steroid used by analyzing the ratio of the two remaining nandrolone metabolites. As a result of the numerous overturned verdicts, the testing procedure was reviewed by UK Sport . On October 5, 2007, three-time Olympic gold medalist for track and field Marion Jones admitted to use of the drug, and was sentenced to six months in jail for lying to a federal grand jury in 2000. 
Regardless of purpose, be it bulking or cutting most will find Trenbolone-Enanthate to be very effective in the 300mg-500mg per week range with 400mg per week generally being a very solid dose. Yes, you can use more but most will find doses that get much past 500mg per week to be a little less side-effect friendly, especially if they enter the 600mg per week range and almost assuredly if they surpass 700mg per week. Regardless of dosing most will find 8 weeks to be decently effective with 12 weeks of use generally being as far as you want to go. If your cycle is extended past 12 weeks it’s normally best to substitute another anabolic hormone in Tren’s place in-order to keep progress alive; yes, our body will adapt.
As for what you should stack Trenbolone-Enanthate with, simply pick whatever you want as this hormone stacks well with all anabolic steroids. However, it is highly recommended that testosterone be part of your stack as Trenbolone in any form will greatly suppress natural testosterone production. Many individuals also find supplementing with the T-3 hormone to be very useful as levels generally fall when Tren is present. Further, as responsible use is important a good Post Cycle Therapy (PCT) plan should occur after the cycle’s completion. In the case of Trenbolone-Enanthate, if your cycle ends with this steroid in play your PCT will not want to begin until at least 2 weeks have passed since your last injection.