WHO’s ECDD has developed a repository comprising over 450 substances which contains information and reports on new psychoactive substances and medicines, for medical and scientific use. 

Expert Committee on Drug Dependence (ECDD) is constituted of an independent group of experts in the field of psychoactive drugs and medicine. 

It is an important resource for policymakers and health professionals to increase their awareness of abuse, harm, and dependence on psychoactive substances. 

This could also assist in improving the detection of substances and clinical treatment of overdose, and other related negative health consequences of drug use. 

Link to the repository - https://ecddrepository.org/