well, I am using it at about 250-500 mgs a week, just to slow down on my AS for a while.. SOmetimes its hard to just jump off. SO i am not mixing it with anything,and it hurts like hell. Taken 500mgs so far in about 7 days, and already feel a little bit better. But I have had test in me for a while now so I figured it would act faster than normal.. A lot faster than normal.. I am using the 10ml vial of 250. Both shots have made me sore, I am still sore form the first one a week ago.. ALso my lot #002