CHEM 207 - Chapter #9 - Drugs

CHEM 207 - Chapter #9 - Drugs - 1 Drugs Drugs Definition...

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Unformatted text preview: 1 Drugs Drugs Definition Definition Drugs are natural or synthetic substances used to produce physiological or psychological effects in humans, higher order animals Background Background Drugs mean different things to different people is it necessary to sustain life? reduce crippling pain? escape pressures of life? Drugs are very prevalent, wide application and acceptance in society Pill popping generations Background Background Marijuana increased use from 1960s to today Alcohol consumption continues to rise 1970s heroin emerges as national problem Cocaine still a major problem in USA (approaching 6 million users) Illicit (Abused) Drug Illicit (Abused) Drug A drug taken for purposes other than for which it was designed, or is a substance that is not designed for any therapeutic effect, and for which the law usually provides a sanction PDF Created with deskPDF TS PDF Writer - DEMO :: http://www.docudesk.com 2 Illicit Drug Illicit Drug Many illicit drugs in our society are pharmaceutical substances, diverted from legitimate supply and abused, ex. stimulants, depressants, analgesics Others are substances with no recognized therapeutic use, taken only for abuse purposes, such as LSD, marijuana Drug Dependence Drug Dependence Early 1900s saw increase in laws aimed at controlling opium, its derivatives, cocaine, later marijuana Drug Dependence Drug Dependence What drug are these people on?? Drug Dependence Drug Dependence Wide variety of dependence, which depends on: Drug nature Administration route (oral, injected, snorted, etc.) Dose Frequency of dose Individuals metabolic rate Drug Dependence Drug Dependence Non-drug factors also important when determining behavior associated with drug use, including: Personality of user Personal expectations of drug use Setting of drug use Societys attitudes and possible responses Drug Dependence Drug Dependence Approached from two perspectives: Psychological dependence Physical dependence PDF Created with deskPDF TS PDF Writer - DEMO :: http://www.docudesk.com 3 Drug Dependence Drug Dependence Psychological dependence- conditioned use of a drug caused by underlying emotional needs Physical dependence- physiological need for a drug that has been brought about by its regular use. Characterized by withdrawal when drug is abruptly stopped. Narcotics Narcotics From Greek narkotikos , state of lethargy. Definition: Pain relieving drugs which also cause sleepiness or sluggishness Not a generic term for drugs of abuse Actually analgesics- pain relievers-act by depressing central nervous system (CNS) Narcotics Narcotics Regular use will lead to physical dependence Most narcotics derived from opium poppy plant ( Papaver somniferium) Opium resin contains 5-20% morphine Opium b morphine b heroin Heroin about 10 X more potent than morphine Narcotics Narcotics...
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CHEM 207 - Chapter #9 - Drugs - 1 Drugs Drugs Definition...

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