Drug rehabilitation is the process of treating a person’s dependency on psychoactive substances, such as alcohol, prescription medications, and illicit drugs like cannabis, cocaine, heroin, or amphetamines, using medical or psychological means. The major objective is to assist the patient in dealing with any substance dependence that may be present and to assist them in quitting drug use so they won’t have to deal with the potential mental, legal, financial, social, and physical repercussions.