right...
https://www.google.com/search?q=artificial+creatine+side+eff...
kidney damage. liver damage. kidney stones. weight gain. bloating. dehydration. hair loss. muscle cramps.
The fact that you estimate weed as a drug is correct - the fact that you don't realize that everything is basically a drug depending on the amount an potency is worrying.
Water is bad for you if you drink too much.