This document provides information about opioids (narcotics) from a class on drugs and society. It discusses various opioids like heroin, morphine, and codeine. It covers topics like opioid abuse patterns in the US, methods of opioid administration, physical and psychological effects of opioids, dependency and withdrawal. The document also discusses medical uses of opioids and harm reduction strategies like needle exchange programs and medications like suboxone and methadone to help treat opioid addiction.