The Centre has apprised the Supreme Court that content related to drug abuse and ill effects of substances such as alcohol, heroin and cocaine have been included in the school textbook prescribed by NCERT and a study is going to explore the possibilities of using drones to destroy illicit cultivation of opium and cannabis by the NCB. Drug Abuse: Content Related to Ill Effects of Substances Such As Alcohol, Heroin and Cocaine Included in School Textbooks, Centre Tells Supreme Court.