Soviet Adaptogens

I was doing some research and came across supplements known as “adaptogens.” According to what I’ve read, Soviet athletes used Eleuthero (Siberian Ginseng) and Schisandra to increase work output, enhance resistance to stress and enhance recuperation. Does anyone know what kind of doses they used? I’m starting with a product that contains 250 mg Eleuthero standardized for .8% eleutherosides twice per day and 200mg Schisandra standardized for 9% schisandrins twice per day. Is this dose about right? (provided it actually does something)

I experimented with Eleuthero about 15 years ago and never experienced any benefit.

I think all the miraculous Soviet supplements were just a cover for the advanced drug programs that many Soviet-block athletes followed.