First off did he have blood work prior to cycling to make sure he was healthy? What I find rather funny is how you dont even know the details of what he was taking or his condition yet you blame gear for his problems. Sure gear use has consequences but it can be used rather safely if done properly. I would bet your friends use was not done properly and that is something you can hardly blame on the juice. Its a little thing I call personal responsibility so what it boils down to is its your freinds fault, not the juices. On a side note, I dont like to see anyone ill, so I do hope your friend will be allright.