thanks for your comment. I don't think Heath Ledger was an addict. I don't think Michael Jackson was an addict, either. I also totally agree that doctors and the health care system do need to do more to teach about the interactions of drugs and to track what people are taking. I am trying to raise awareness about the seriousness and power of drugs and their interactions, so that more people can be informed patients/consumers, as it sounds like you are.