Mak was right they played with esters to make different drugs to reduce sides and treat diseases like anemia, muscle wasting etc.
Modern?
Most of the esters were made in the 1950's-1970's.
not much after that in the 1980's and beyond.
It's a shame because of the stigma of AAS and lack of patents, AAS research was at an all time low.
It was revived a bit in the early 1990's for AIDS patients..but in America generic dball was removed from the market in 1985, anavar in 1988, Anadrol in 1993..both Anavar and Anadrol were brought back in the early 1990's at rediculous prices for AIDS patients.
It's truely sad because we have the technology and delivery systems to really make feel good drugs and anti-aging with AAS esters that could improve overall health and etc.
Making no need for anti-depressants fat blockers dick drugs etc etc. but the social stigma and etc will keep the pharm companies. Also to truely treat muscle wasting diseases and improve quality of life injuries etc.
It sucks becaise this is 2005 and we have the ability to administer and mimick hormones like DHEA, IGF-1, GH test, estrogen etc all in optimal anti-aging amounts reversing the process and repairing these broken down out of shape unhealthy people and to prevent it and we don't.