Psychology 2020A/B Study Guide - Midterm Guide: Alcohol Dehydrogenase, Alcohol Tolerance, Acetaldehyde Dehydrogenase

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A drug is a chemical compound that may produce psychological, behavioural and physiological effects. Psychoactive effects refer to alteration in cognitive, behavioural and motor processes eg euphoria, distortions of time perception, hallucinations or increased libido. Drugs are distributed throughout the body via the circulatory system. Process: administration, absorption, distribution, metabolism ad elimination are known collectively as pharmacokinetics. Processes involved in the interaction of the drug with receptors at the site of action are known as pharmacodynamics. Cytochrome p-450 is a term used for a very large group of enzymes, found primarily in the endoplasmic reticulum of liver cells, that are involved in the metabolism of most drugs. Injection: absorption is more rapid following intraperitoneal(stomach) administration than following intramuscular (muscle), which is more rapid than following subcutaneous (just below skin/ into fatty layer). Mainling in s the term used for intravenous injections in the drug subculture. Skin popping is the term often used to refer to subcutaneous injections of illicit drugs.