Stimulants, Depressants and Hallucinogens are available by prescription, in over the counter medications and as illicit substances. Learn more about the effects of these types of drugs, how they impact your brain chemistry and signs and symptoms of intoxication and withdrawal. In this Episode, we will: Define stimulants, depressants and hallucinogens  Discuss their ◦ Mechanism of action ◦ Symptoms of intoxication ◦ Symptoms of withdrawal ◦ Short and long term effects ◦ Common street names  Explore the process of differential diagnosis