You might need to go to a old school powerlifting board to get an answer from guys that used it, but it was used by a few folks during the early 80's. I remember a couple of guys saying that it was good for a few pounds on a lift, but not a giant amount. The down side was that you felt like @#$% afterward for a while.
You might still be able to find the epinephrine for sale in vet and livestock supply houses, they still sold it a few years back.