when charles first took over as ceo , he didnt know an aspirin from an anti-depressant.but when the reward was big money , charles was a fast learner.he quickly learned that there were so many drugs designed to do one thing , and then ultimately used for a wide range of other disorders.by simply changing a small fraction of an already existing compound , a completely new drug could be marketed.working with another companys product , an anti-convulsive , charles followed the parade into the wide world of sedatives .