injectable superdrol

Recently picked up a vial of Injectable Superdrol 40mg/ml Only tried it twice so far preworkout 8-10mg. I've notice some nice juicy pumps (I drink 16oz orange juice during my workouts ~60 carbs) . This stuff eats glycogen and fulls the muscles like tren, very comparable compound in the gym...

Is this normal? Just as an experiment I pinned 8mg of Sdrol before my workout twice in the last 2 weeks. About an hour later I literally NEED to lay down and take a half hour nap before I am able to get up and lift. Is that level of lethargy/tiredness, with that degree of acuteness of action? I...