funny how Arthur Jones said no steroids were used in the colorado experiment and forgot to mention Casey wqas sick before starting. but anyway Arthur gave BillPeral Nilevar from Searle in 1958 or 1959 i believe and sure it was only 30mg but he did it for 12 weeks as everyone ran orals longer then but did lower doses. also some guys 100% back then were doing 100mg of CIBA orginal dbol and in an interview you sjhould be able to find Sergio said he got sick of needles so did 7 dbol 3 times a day and Rick Wayne said in his book Arnold had 8 for breakfast. imagine how much that would equal in modern dbol? Freddy ortiz and Pete Grymkowski took the whole 500mg bottle daily for a post show rebound pete admits it and has been seen by many and Jerry Brainum saw Freddy do that himself and on top of that drank whiskey and smoked. but they weaned off of everything, we dont do that today.
Testosterone can be administered parenterally , but it has more irregular prolonged absorption time and greater activity in muscle in enanthate , undecanoate , or cypionate ester form. These derivatives are hydrolyzed to release free testosterone at the site of injection; absorption rate (and thus injection schedule) varies among different esters, but medical injections are normally done anywhere between semi-weekly to once every 12 weeks. A more frequent schedule may be desirable in order to maintain a more constant level of hormone in the system.  Injectable steroids are typically administered into the muscle, not into the vein, to avoid sudden changes in the amount of the drug in the bloodstream. In addition, because estered testosterone is dissolved in oil, intravenous injection has the potential to cause a dangerous embolism (clot) in the bloodstream.