How exactly does the FDA define "safe and effective" you ask.
I assume that is a rhetorical question.
But it seems at this point they define it as... "Who is give to us the monies"
To get a new drug approved by the FDA, it must be demonstrated in a single clinical trial to be more effective than a placebo. That is all.
For 'enhancements' and newer versions of existing drugs, the replacements also do not have to be shown to be better than the drug they are replacing. Rather, again, they only have to prove they are better than the placebo.
This allows the pharmaceutical companies to make perhaps only trivial changes and get new 20-year patents, which of course is really the only purpose of the 'new and improved' enhancement.
BTW most of those 'new' drugs being patented by drug companies are actually researched and created by taxpayer-funded National Institutes of Health and associated academic studies. That's right, your money is paying for billions of dollars worth of drug research, but Congress (the Bayh-Dole Act, among others) specifically allows investor-owned pharmaceutical companies to own the patents and reap the profits from selling the drugs.
Check out some writings of Dr. Marcia Angell, M.D. at Harvard Medical School, former editor-in-chief of the New England Journal of Medicine.
What a society.
But on a positive note, here is some long awaited news for the poor drug industry: FDA Finally Approves Prescription Placebo.
Steve