Cocaine is a powerfully addictive stimulant drug. It has similar affect as alcohol. If a person takes a small dose he feels himself calm and relaxed.
But the effect can be different. It depends on the person. Also if a person takes a large dose it can make him feel himself badly and the person can die. Cocaine can be taken in by snorting, smoking, injection or oral consumption. But still effects will be the same.
Cocaine is white powder usually mixed with corn starch, powdered milk, sugars or flour. This can result in a period of full-blown paranoid psychosis, in which the user loses touch with reality and experiences auditory hallucinations. Complications associated with cocaine use include disturbances in hearth rhythm, heart attacks, chest pain, respiratory failure, strokes, seizures, headaches, and gastrointestinal complications such as abdominal pain and nausea.
If you have used cocaine once it will stay in your system for different time in various organs. It can stay in your urine for about 1 or up to 3 days. But it can stay in your hair up to about 90 days. In your blood it stays not very long, but it is the most dangerous place. The another fact that cocaine can stay in your hair for about 25 years after you take it once.