Narcotic Drugs System (NDS) is a general and comprehensive system used by the authorized organizations and companies which are dealing with narcotic drugs and psychotropic substances. This system links between beneficiaries and the Saudi Food and Drug Authority (SFDA). So, SFDA can control and track narcotic drugs and psychotropic substances electronically. <a href="https://www.sfda.gov.sa/ar/regulations/69524"> User Manual </a>