"While it is true cocaine and crack are not physically addictive like heroin, it is misleading to define and therefore measure the existence of physical addiction using withdrawal symptoms associated with heroin. Each drug has it own unique physical effects, which in the case of cocaine amnd crack are very powerful. A chronic user of cocaine or crack will become very tolerant to the drug and their body also very used to the drug keeping them awake and functional. Once the user stops, which can prove very difficult for a regular or chronic user, they will very quickly start to feel tired, panicky, exhausted and unable to sleep, often causing extreme emotional and physical distress. This can manifest itself in symptoms such as diarrhoea, vomiting, the shakes, insomnia, anorexia and sweating, which for some can prove unbearable. Many chronic users are well aware of these symptoms and, in an attempt to avoid them as well as ensuing fatigue, are very reluctant to stop its use."
