Testing for Safety and Effectiveness
Testing for Safety and Effectiveness : New drugs approved by the U.S. Government must not only be shown to be safe to use, but also to be effective at producing the desired effect. All candidate drugs must go through multiple phases of testing before they are approved. Early testing shows safety in animals and humans, while the later phases test for effectiveness and further confirm safety. This process is very expensive and may take many years. For this reason, many potential drugs remain untested