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Chapter 23
Lesson 4
Did You Know?
Psychoactive drugs are chemicals that affect
the central nervous system and alter activity
in the brain.
Classification of
Psychoactive Drugs
A.
B.
C.
D.
Stimulants
Depressants
Narcotics
Hallucinogens
Health Risks of Stimulants
A.
B.
C.
Caffeine and nicotine speed up the central nervous
system.
Using cocaine can lead to depression, paranoia, and
physiological dependence as well as cause
malnutrition and cardiac problems.
Crack is a very pure form of cocaine.
1. It drastically increases the heart rate and blood
pressure
2. Mixing cocaine and alcohol can lead to death from
liver failure.
Health Risks of Stimulants
D. Amphetamines given through prescriptions reduce
fatigue, drowsiness, and appetite, yet many people
take them illegally to stay alert and run the risk of
irregular heartbeats, paranoia, and other damage to
the body.
E. Methamphetamine is used to treat obesity and other
diseases, yet when taken illegally can cause
depression, paranoia, and even death.
Stimulants
Nicotine
Cocaine
Amphetamine
Health Risks of Depressants
A. Depressants are sedatives that tend to slow down the
central nervous system.
1. They slow heart rate.
2. They can lower blood pressure.
3. They can also affect breathing
B. Barbiturates are sedative-hypnotic drugs.
1. They induce sleepiness.
2. They can cause mood changes.
3. They can result in a coma.
Health Risks of Depressants
C. Tranquilizers reduce muscular activity,
coordination, and attention span.
1. When overused, users can become
physiologically and psychologically
dependent on them.
2. Users can experience withdrawal
symptoms, such as severe shaking and even a
coma or death.
Health Risks of Depressants
D. Rohypnol is ten times as strong as
tranquilizers.
1. It is a drug used in date-rape crimes.
2. It is used in crimes of dating violence.
E. Gammahydroxy butyric acid (GHB) is used in
date-rape crimes.
Depressants
Tranquilizers
Barbiturates
Rohypnol
Discussion Question
How can you take precautions against being
drugged without your knowledge and thus
avoid getting involved in dating violence?
Narcotics
A.
B.
C.
These are specific drugs made from the
opium plant.
They are given only by prescription and used
to relieve pain.
They are addictive.
Health Risks of Depressants
D. Heroin is highly addictive narcotic.
1.
2.
3.
4.
It depresses the central nervous system.
It slows breathing and pulse rate.
It can cause infection of the heart lining and valves.
Withdrawal from heroin is very painful.
Narcotics
Narcotics
Heroin
Hallucinogens
A.
B.
C.
PCP distorts time and space, increases muscle
strength, and causes the inability to feel pain.
LSD causes severe distortions of sound and
color as well as causes the risk of
convulsions, coma, and heart and lung
function.
Ketamine causes dreamlike states and may
result in respiratory failure.
Hallucinogens
LSD
PCP
Ketamine
Ecstasy and Other
Dangerous Drugs
A.
B.
Designer drugs are synthetic substances
meant to imitate the effects of dangerous
drugs.
Ecstasy is a designer drug that gives a shortterm euphoric feeling, yet often causes
confusion, depression, paranoia, and other
harmful effects.
Ecstasy and Other
Dangerous Drugs
C. There are consequences of drug use, such as
leading to unsafe situations, violence, and
accidents.
Ecstasy