CHY 183 Lecture Notes - Lecture 4: Phenobarbital, Controlled Substances Act, Dextropropoxyphene
Document Summary
* a drug is a natural or synthetic substance used to produce physiological/psychology effects in humans or animals. * codeine and heroin are more reactive than morphine because they can cross the fatty barrier of the brain easier. * codeine: also present in opium but prepared synthetically from morphine. * oxycontin: with ingredient oxycodone, not derived from opium but has same physiological effects; prescribed to a million patients for treatment of chronic pain. * methadone: synthetic opiate, pharmacologically related to heroin, eliminates addict"s desire for heroin. * hallucinogens cause marked changes in normal thought processes, perceptions and moods. * lsd: synthesized from lysergic acid, hallucinations last 12 hours; acid due to no nitrogen. * depressants are used to depress functions of the central nervous system, calm irritability/anxiety and induce sleep. * alcohol: enters bloodstream and travels to the brain where it suppresses the brain"s control of thought processes and muscle coordination.
