You want to introduce drugs/foreign molecule in a body? and hope everybody will respond perfectly to this ? Better change the body and not the drug ;) So imo t

You want to introduce drugs/foreign molecule in a body? and hope everybody will respond perfectly to this ? Better change the body and not the drug ;) So imo the most important thing for the FDA: 1) Does it actually do what it's intended to do ? 2) Determine conditions before you can take the drug. Drugs that have very rare side-effect -> over the counter. Dangerous drugs -> pretesting/screening of the patient before even considering given the drugs.