Jim,
Read the disclaimer that comes with any drug. For example, after reading aspirin's warning, you will never take the drug again. I believe there are over two dozen calmities, disasters, death-inducing effects an aspirin can cause!! All drugs have similar warnings. It's all due to lawyers of course. They make their fortunes by scaring makers and their customers half to death to avoid lawsuits.
Cynical MamaMoose