Cocaine is a naturally derived, highly potent nervous system (CNS) stimulant and a local anesthetic. Cocaine is consumed either by chewing, snorting or smoking ; alternatively it may also be injected. The psychological effects induced by using cocaine are euphoria,feeling of confidence , sense of increased energy, and a dissociative state of mind. These psychological effects are accompanied by increased heart rate, dilation of the pupils, difficulty in breathing, fever , tremors and sweating. Cocaine is either excreted unchanged or as metabolites namely benzoylecgonine and ecgonine methyl ester in a short period of time.Cocaine has a half -life of 2.4 to 4 hours. This Test detects the presence of cocaine in human urine specimens, qualitatively.