This document discusses designer drugs, also known as legal highs, research chemicals, or bath salts. It notes that these drugs are psychoactive compounds that are marketed and sold legally, but can cause acute poisonings and deaths. The document outlines some of the main dangers of designer drugs, including that their contents are unknown, they may be dangerous when mixed with other substances, dosages are unclear, and they can cause overdoses. It then provides classifications of different types of designer drugs like stimulants, hallucinogens, cannabinoids, and sedatives. The document concludes by stating that new psychoactive substances are constantly being designed to avoid regulation and control, so pharmacists need to be aware of potential