This is known as doping many performance enhancing drugs are banned by sports governing bodies there are 5 doping classes which are categories of banned drugs beta blockers are banned in. Doping is undoubtedly one of the most controversial issues within sport doping scandals wreck the careers of sportsmen and womenthey can bankrupt governing bodies infringe personal liberties threaten livelihoods tarnish images galvanise the european union undermine the olympic movement and invoke invective from politicians. The ioc oversees the implementation of doping controls by the organising committees for the olympic games and the world anti doping agency wadaproducing clean athletes is a top priority for the ioc but policing drug taking is not easy laboratory tests can only test for specific substances and it is relatively simple for clandestine manufacturers of peds to slightly modify the drug as to . The term doping is widely used by organizations that regulate sporting competitions the use of drugs to enhance performance is considered unethical and therefore prohibited by most international sports organizations including the international olympic committee