FRSC 1011H Chapter Notes - Chapter 11: Anabolic Steroid, Oxycodone, Butanone
2 May 2018
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Drugs
Drug Dependence
● A drug is a natural or synthetic substance that is used to produce physiological or
psychological effects in humans or other animals.
● Non Drug factors that play a part in drug dependence include the personal
characteristics of the user, his or her expectations about the drug experience,
society’s attitudes toward and possible responses to the drug, and the setting in
which the drug is used.
● Physical dependence is defined as a physiological need for a drug that has been
brought about by its regular use. Psychological dependence is the conditioned
use of a drug caused by underlying emotional needs.
Types of Drugs
● Narcotic drugs are analgesics, meaning that they relieve pain by depressing the
central nervous system.
● The most common source for narcotic drugs is opium. Morphine is extracted from
opium and used to synthesize heroin.
● Opiates are not derived from opium or morphine, but they have the same
physiological effects on the body. Examples of opiates are methadone and
OxyContin.
● Hallucinogens cause marked changes in normal thought processes, perceptions,
and moods. Marijuana is the most well-known drug in this class. Other
hallucinogens include LSD, mescaline, PCP, psilocybin,and MDMA.
● Depressants decrease the activity of the central nervous system, calm irritability
and excitability, and produce sleep. Depressants include alcohol, barbiturates,
tranquilizers, and various substances that can be sniffed such as airplane glue
and model cement.
● Stimulants increase the activity of the central nervous system and area taken to
increase alertness and activity. Stimulants include amphetamines, sometime
known as “upper”, or “speed”, and cocaine, which in its free-base form known as
“crack”.
● Club drugs are synthetic drugs that are used at nightclubs, bars, and raves.
Some club drugs act as stimulants; others have depressant effects.
● Anabolic steroids are synthetic compound that are chemically related to the male
sex hormone testosterone. Anabolic steroids are often abused by individuals who
are interested in accelerating muscle growth.
Document Summary
A drug is a natural or synthetic substance that is used to produce physiological or psychological effects in humans or other animals. Physical dependence is defined as a physiological need for a drug that has been brought about by its regular use. Psychological dependence is the conditioned use of a drug caused by underlying emotional needs. Narcotic drugs are analgesics, meaning that they relieve pain by depressing the central nervous system. The most common source for narcotic drugs is opium. Morphine is extracted from opium and used to synthesize heroin. Opiates are not derived from opium or morphine, but they have the same physiological effects on the body. Hallucinogens cause marked changes in normal thought processes, perceptions, and moods. Marijuana is the most well-known drug in this class. Other hallucinogens include lsd, mescaline, pcp, psilocybin,and mdma. Depressants decrease the activity of the central nervous system, calm irritability and excitability, and produce sleep.
