Narcotic analgesics are opiod drugs for pain relief. Anabolic steroids are androgens that enhance muscle performance. These include certain drugs and hormones. Diuretics produce large amount of urine . Hence sportsperson use such drugs to reduce their body weight especially to fit in categories that depend on weights. These also help to excrete residue form of steroidal hormones. Hence all these three categories are used by sportspersons.