Chapter 5Altering Consciousness Through DrugsPsychoactive substances= drugs that have psychological effects such as stimulation or distortion of perceptions. Stimulant=a drug that _________ the activity of the nervous system. Stimulants improve mood, increase feelings of well-being, and increase energy and alertness. cocaine=crack cocaine=amphetamine=methamphetamine=nicotine=Tobacco is responsible for more deaths in the United States than the combined totals of alcohol, illicit drugs, firearms and car accidents. , suicides, homicides, and AIDS combined according to a 1999 study mentioned in your textbook. MDMA = Depressant = a drug that _______ the rate of activity of the nervous system Alcohol = Opiates = Prescription Narcotics: Category I = drugs for _______ pain (Dilaudid, Demerol, Fentanyl, Methadone) Category II = pain drugs ___________ (codeine, Percodan, Percocet, hydrocodone: Vicodin, Lortab)Category III= drugs for ______ to moderate pain (Darvon, Darvocet)Cannabis=Sedatives=Barbiturates=Solvents and inhalants= The most used drug in the United States among high school students ( see graph 5.4) pg 2081. alcohol 1. alcohol2.