Original sentence: At that time, Rorer chairman John Eckman commented on  Quaalude's bad reputation stemming from illegal manufacture and use of methaqualone, and illegal sale and use of legally prescribed Quaalude:
Edited sentence: At that time, Rorer chairman John Eckman commented on  Quaalude's bad reputation stemming from illegal manufacture and abuse of methaqualone, and illegal sale and abuse of legally prescribed Quaalude: