I am wondering my buddy has 3 vicodin 7.5s, 2 Methocarbamol 750 mgs, and 1 Cyclobenzaprine 10 mg. He got them from a buddy. He is pretty large 5' 8" 300 pounds. He only does it a couple times a month but he is wanting to have a fun pain free night. He has had bad back problems (football injury). Would these be safe to take all of them together for a man his size? Or is there any bad interactions between these 3 pills? He just wants to be safe and not do anything dumb. Any help from anyone would be greatly appreciated!