Do read the book “C'est quoi la drogue?”  " by Marie-Christine d'Welles (published by Jean - Cyrille Godefroy, September 2013) to high school students.

This book is a wonderful educational tool, accessible to all.

This book provides objective and scientific information, data, arguments and essential information on drugs. It provides all parents and adolescents, abstainers or users, with reliable and scientific information.

This text is the best current material for communicating on this subject in the family.

Parents read it, get your adolescents to read it and ask them questions. 
For example: Which side are you on? 

Study with them the information in the Psychotropic Drugs menu