Welcome to Substance Use Disorders in Primary Care (SUDPC). The SUDPC course provides an introduction to the prevention, screening, and treatment (medication, risk of interactions with substances, psychological therapies) of substance use disorders related to alcohol, tobacco, and other drug use. The course also provides an introduction to the health consequences associated with substance use disorders and the links between substance use disorders and mental health disorders. Students will gain practical knowledge on how to communicate with patients, conduct a medical consultation to assess substance use disorders, monitor treatment effects, and decide when to refer their patients to specialized settings. The course uses various formats of learning resources (e.g., academic publications, health agencies recommendations, medical associations recommendations, and government guidelines), and its activities allow students to practice techniques with their local peers in hopes of reducing the prevalence and burden of substance use disorders.