"Substance abuse refers to the harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs. It can also be simply defined as a pattern of harmful use of any substance for mood-altering purposes. Generally, when most people talk about substance abuse, they are referring to the use of illegal drugs. But illegal drugs are not the only substances that can be abused. Alcohol, prescribed medications, inhalants and even coffee and cigarettes, can be used to harmful excess. Substance abuse can lead to dependence syndrome - a cluster of behavioural, cognitive, and physiological phenomena that develop after repeated use including a strong desire to take the drug, persisting in its use despite harmful consequences, increased tolerance, and a physical withdrawal state. In this guidebook, based upon the situation in our community, we present the most common substances that are often abused, how they are used, their street names, and their intoxicating and health effects.".....CONTENTS:- Part I: Alcohol... Amphetamine, Yaba, Ecstasy... Benzodiazepines... Betel Nut and Betal Leaf (Kwan-ya)... Cannabis... Cocaine - (Crack)... Codeine... Heroin... Volatile Substance or Inhalants ... Methadone... Opium... Tobacco..... PART II:- General Views of Substance Abuse... Chronic Effects of Alcoholism... Management in Substance Abuse Overdose... Psycho-Counselling for Substance Abuse.