Narcotics

Narcotics are drugs that can change a person's psychic and physical state across a wide range of symptoms, from sleep to euphoria and excitation. They may be injected into the bloodstream, muscles or under the skin, or swallowed; their main effect is to reduce, eliminate or hide pain, which is why they are misused in sport to mask the pain of injury.

How they work physiologically

Narcotics (opioid-type painkillers) act on specific opioid receptors in the brain and spinal cord that normally respond to the body's own natural pain-relieving chemicals. By strongly activating these receptors, narcotics block pain signals from reaching conscious awareness and can also produce a feeling of euphoria, which is part of why they carry such a high risk of dependence.

Why athletes misuse them

The temptation for an injured athlete is obvious: a narcotic can let a player compete or train through pain that would otherwise force them to stop. This is also exactly why misuse is so dangerous — masking pain does not heal the underlying injury, and an athlete who competes without feeling warning pain can turn a manageable injury into a severe, sometimes permanent one by continuing to load a damaged joint or muscle without the body's normal protective signal.

Common examples in the WADA narcotics list include morphine, pethidine, oxycodone and similar strong opioid painkillers — drugs that are legitimate medicines for genuine pain management under medical supervision, but which cross into doping the moment they are used to let an athlete compete or train through an injury that should otherwise be resting and healing.

Detection and WADA status …