General Discussion
In reply to the discussion: GMO's are they safe? There is no way to be sure yet...there are no absolutes in young science... [View all]pnwmom
(110,198 posts)It doesn't for drugs. Just as a certain drug could have an unknown mechanism of action that relieves symptoms, it could produce side effects by an unknown means. What would be important to the FDA would be the effects not their means. Logically, the lack of a mechanism doesn't prove there couldn't be adverse effects; there could be a lack of mechanism due to the fact that the science in a particular area isn't developed enough to understand the means -- not that it doesn't exist.
Some of the major drugs that are in use today are approved -- or disapproved -- despite the lack of a mechanism. What they do have is research (or at least experience) showing the risks vs. the benefits. And that is what the FDA has allowed GMO producers to circumvent, since its 1992 Bush/Cheney/Monsanto decree that its default position is that all GMO's are safe.
http://www.cengagesites.com/academic/assets/sites/5407/pdf/drug-admin/section1.pdf
Sometimes the mechanism of action of a drug is unknown, even though the drug has been used for a long time, for example, the role played by phenytoin in decreasing epileptic seizures is not known.