Psychology 2221A/B Study Guide - Final Guide: Suppository, Transdermal Patch, Intramuscular Injection

• School: Western University
• Department: Psychology
• Course: Psychology 2221A/B
• Professor: Cross-Mellor

Document Summary

Drug: substance that changes the body or its functioning: psychoactive drug: drugs that influence subjective experience and behaviour by acting on nervous system. Intravenous, intramuscular (vaccines, slow absorption), subcutaneous (under skin, ex: hormones, tb test, steroids) Intranasal sniffing, sublingual absorption (under tongue), rectal suppository, transdermal patch. Determining dose required to produce maximal effect: can be assessed by plotting a dose-response curve, need minimum dose to get minimum effect. Increasing dose increases response, then naturally plateaus the wider the margin of safety, the better. Drug tolerance dose-response curve: depicted as a shift to the right, blue line is how much is needed the second time red line is how much is needed the first time. Individuals who suffer withdrawal reactions when they stop taking a drug are said to be physically dependant on that drug: withdrawal symptoms typically opposite, heroin, euphoria, relaxation and constipation, heroin withdrawal, agitation, anxiety, and cramping/nausea.