I'm unfortunately affected by hepatitis C, which I got in 1982 through the tainted blood system here in Ontario. I can tell you that one of the main reasons for hospitalization associated with liver disease is actually the overuse of Tylenol.
You don't need to just look at prescription drug use to find problems with our current use of pharmaceuticals. I believe I read a study recently that showed that 23% of hospitalizations in the United States are caused by the misuse, abuse, or overuse of prescription drugs. It ends up being the number one cause of hospitalizations in the entire United States.
There's no doubt in my mind that there's currently a lot of legal, either prescription or over-the-counter, drugs, which unfortunately lead to a lot of health problems in Canada.