Rôrô is a new social phenomenon that is gaining ground in the country. RÔRÔ is a danger that shocks public opinion and destroys the future of Malagasy youth, if young people are not warned before they take the drug. Rôrô is just heroin, but in the form of a white powder with a bitter taste, it is mixed with numerous substances such as sugar, quinine, fentanyl... Catechesis on drug use, with P. Avellin Ravelonanosy.