This document discusses doping control and prohibited substances in sports. It defines doping as any act that violates doping rules and can alter an athlete's performance. Doping is banned for medical and ethical reasons. The doping control process is described in 9 steps from athlete notification to sample analysis. Prohibited substances include anabolic steroids, beta-2 agonists, stimulants, narcotics, and diuretics. Prohibited methods include blood doping and gene doping. Athletes have rights during the process like having a representative and requesting modifications, and responsibilities like complying with procedures. Therapeutic use exemptions can be requested and approved for certain prohibited substances.