Also the label had to be accurate as to the location of the manufacture of the medicine. And that was all. Keep quiet on the label or do not lie is all the law stated. This law was not an effort to end self-medication but to make it safer for the American public. It relied on the knowledge and common sense of the American public that if warned of potentially dangerous contents they would not take these medicines. Regrettably the vast majority of the American public were neither wise enough nor had enough common sense to make this law effective in protecting the public from the harms of patent medicines, that simply relabeled and continued selling their bogus products. Though there would be amendments to the 1906 Pure Food and Drug Act trying to close loopholes and major new pure food and drug legislation passed by Congress in 1938 and 1963 the quacks have always run several steps ahead of this type of legislation and effectively promoted their phony drugs and devises.