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.
There have been stories the DEA/FDA may frown upon the dispensing of testosterone propionate instead of testosterone cypionate or enanthate by physicians. The reason given: “it is used more often for performance optimization like growth hormone (GH) and is a red flag”. There are numerous physicians prescribing testosterone propionate in their practices without issue. This may warrant further monitoring for any doctor using testosterone propionate. In my book, I recommend 30-50 mg of Testosterone Propionate injected every other day (EOD) as an excellent option for long term TRT administration.