Cocaine abstinência is a clinically significant cluster of symptoms, behaviours and/or physiological features, varying in degree of severity and duration, that occurs upon cessation or reduction of uso of cocaine in individuals who have developed Cocaine dependência or have used cocaine for a prolonged period or in large amounts. Presenting features of Cocaine abstinência may include dysphoric mood, irritability, fatigue, psychomotor retardation, vivid unpleasant dreams, insomnia or hypersomnia, increased appetite, anxiety, psychomotor agitation or retardation, and craving for cocaine.