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Drug addiction and drug abuse
Dr. S. Parasuraman M.Pharm., Ph.D.,
Senior Lecturer, Faculty of Pharmacy,
AIMST University,
Bedong 08100, Malaysia.
Drug addiction and drug abuse
Drug addiction and drug abuse
• Drug addiction and drug abuse, chronic or habitual use of
any chemical substance to alter states of body or mind
for other than medically warranted purposes.
– physical dependence
– withdrawal
• Addiction: Compulsive nature of the drug use despite
physical and/or psychological harm to the user and
society and includes both licit and illicit drugs.
• Substance abuse: Frequently used broad range of
substances (including alcohol and inhalants) that can fit
the addictive profile.
Drug addiction and drug abuse
• Dependence:
– Psychological dependence is the
subjective feeling that the user
needs the drug to maintain a
feeling of well-being. Eg: cocaine
– Physical dependence is
characterized by tolerance (the
need for increasingly larger
doses in order to achieve the
initial effect) and withdrawal
symptoms when the user is
abstinent.
• addiction to morphine (reward pathway)
• dependence to morphine (thalamus and
brainstem)
Drug use terms and descriptions
• Drug: In medicine, it refers to any substance with the
potential to prevent or cure disease or enhance physical or
mental well-being. In pharmacology, drug refers to any agent
that alters the biochemical or physiological processes of tissue
or organism.
• Street drug: Drug that is taken for non-medicinal reasons
(usually for mind-altering effects); drug abuse can lead to
physical and mental damage and (with some substances)
dependence and addiction. Eg: Alcohol, heroin,
methamphetamine, crack, cocaine and marijuana (Cannabis).
• Street drugs: http://www.streetdrugs.org
Drug use terms and descriptions
• Hard drug (lead to severe physical addiction):
– Drug that is generally considered to be more dangerous, with a higher
risk of dependence that soft drugs. Eg.: Heroin, methamphetamine,
cocaine.
• Soft drug (do not cause physical addiction):
– While they do not cause physical addiction, some of them may still
lead to psychological dependency. Psychological dependency is a
dependency of the mind. This means that people feel better when
they have the drug. Eg: lysergic acid diethylamide (LSD), Cannabis
Drug use terms and descriptions
• Illicit drug: AN illegal drug, can’t prescribed. Eg.: Cocaine,
heroin, LSD, marijuana.
• Designer drug: A synthetic drug very similar in chemical
makeup to an existing drug and thus exerting similar.
• Club drug: A drug whose use primarily occurs in clubs, bars
and trance parities. E.g: Rohypnol, ketamine.
(http://www.clubdrugs.org/)
• Recreational drugs:
– Recreational drugs are those used for non medicinal
purposes, in particular, for fun or leisure.
– Eg.: methamphetamine (potent psychostimulant of the
phenethylamine), that is used to treat attention deficit
hyperactivity disorder (ADHD), drive long distances and
obesity
Drug use terms and descriptions
• Adulterants: drugs that are added to mimic or enhance the
effects of the drug being offered. Example, sometimes
amphetamines have been cut with caffeine or ephedrine
• Diluents: Compounds such as sugars or baking soda that are
used to increase the bulk of the drug sample.
Types of Abused Substances
• Legal Substances
– Legal substances, approved by law for sale over the
counter or by doctor's prescription, include caffeine,
alcoholic beverages, nicotine, and inhalants (nail polish,
glue, inhalers, gasoline).
– Prescription drugs such as tranquilizers, amphetamines,
benzodiazepines, barbiturates, steroids, and analgesics
can be knowingly or unknowingly overprescribed or
otherwise used improperly.
Types of Abused Substances
• Illegal Substances
– Prescription drugs are considered illegal when diverted
from proper use.
– Morphine, and synthetic opiates, such as fentanyl, are
most often abused by people in the medical professions,
who have easier access to these drugs.
– Other illegal substances include cocaine and crack,
marijuana and hashish, heroin, hallucinogenic drugs such
as lysergic acid diethylamide, phencycline or "angel dust",
"designer drugs" such as MDMA (Ecstasy), and "party
drugs" such as GHB (gamma hydroxybutyrate).
Motivations for Drug Use
• People take drugs for many reasons, and they may
take stimulants to keep alert, or cocaine for the
feeling of excitement it produces.
– peer pressure
– relief of stress
– increased energy
– to relax
– to relieve pain
– to escape reality
– to feel more self-esteem, and for recreation.
• Athletes and bodybuilders may take anabolic steroids
to increase muscle mass
Effects of Substance Abuse
• The effects of substance abuse can be on many
levels:
– on the individual,
– on friends and family,
– on society.
Effects of Substance Abuse- on individual
• Around 10000 death causes by drug abuse in USA every
year.
• Many drug users engage in criminal activity, such as
burglary and prostitution, to raise the money to buy drugs,
and some drugs, especially alcohol, are associated with
violent behavior.
• Cocaine: anxiety, fatigue, depression, and an acute desire.
• Marijuana and alcohol interfere with motor control and
are factors in many automobile accidents.
• Users of marijuana and hallucinogenic drugs may
experience flashbacks, unwanted recurrences of the drug's
effects weeks or months after use.
Effects of Substance Abuse- on individual
• Sharing hypodermic needles used to inject some drugs
dramatically increases the risk of contracting AIDS and
some types of hepatitis.
• Heroin withdrawal can cause vomiting, muscle cramps,
convulsions, and delirium.
Effects of Substance Abuse-on friends and
family
• Marital problems and poor
work performance
• Pregnant drug users, because
of the drugs themselves or
poor self-care in general, bear
a much higher rate of low
birth-weight babies than the
average.
Effects of Substance Abuse- on society
• Drug abuse affects society in many ways.
• In the workplace it is costly in terms of lost work time and
inefficiency.
• Drug-related crime can disrupt neighborhoods due to
violence among drug dealers, threats to residents, and
the crimes of the addicts themselves.
• Half of the highway deaths in the United States involve
alcohol.
Symptoms
• Recurrent drug use may result in a failure to fulfill major role
obligations at work, school, or home.
• Repeated absences, tardiness, poor performance, suspensions,
or neglect of duties in major life domains suggests drug abuse.
• Recurrent drug use in situations in which it is physically
hazardous is a sign of abuse.
• Operating machinery, driving a car, swimming, or walking in a
dangerous area while under the influence indicates drug abuse.
• Recurrent drug-related legal problems, such as arrests for
disorderly conduct or for driving under the influence, are
indicative of abuse.
• Recurrent use despite having persistent or recurrent social or
interpersonal problems, caused or exacerbated by the effects
of the drug, is indicative of abuse.
Drug addiction and drug abuse
Treatment
• Treatment of substance
abusers depends upon the
severity and nature of the
addiction, motivation, and
the availability of services.
• Pharmacological treatment
• Fighting Substance Abuse
• Supply Reduction
• Reduction of demand for
drugs
• Legalization and
decriminalization
Treatment-Pharmacotherapy
• Both pharmacological and behavioral treatments are
used, often augmented by educational and vocational
services. Treatment may include detoxification, therapy,
and support groups, such as the 12-step groups
Alcoholics Anonymous, Narcotics Anonymous, and
Cocaine Anonymous.
– Disulfiram is a medicine used in the treatment of
alcoholism.
– methadone or buprenorphine maintenance programs for
heroin addiction.
The main drugs of abuse
Type Examples Dependence liability
Narcotic analgesics Morphine Very strong
Diamorphine Very strong
General CNS depressants Ethanol Strong
Barbiturates Strong
Methaqualone Moderate
Glutethimide Moderate
Anaesthetics Moderate
Solvents Strong
The main drugs of abuse (continued)
Anxiolytic drugs Benzodiazepines Moderate
Psychomotor stimulants Amphetamines Strong
Cocaine Very strong
Caffeine Weak
Nicotine Very strong
Psychotomimetic agents LSD Weak or absent
Mescaline Weak or absent
Phencyclidine Moderate
Cannabis Weak or absent
Thank you

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Drug addiction and drug abuse

  • 1. Drug addiction and drug abuse Dr. S. Parasuraman M.Pharm., Ph.D., Senior Lecturer, Faculty of Pharmacy, AIMST University, Bedong 08100, Malaysia.
  • 3. Drug addiction and drug abuse • Drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states of body or mind for other than medically warranted purposes. – physical dependence – withdrawal • Addiction: Compulsive nature of the drug use despite physical and/or psychological harm to the user and society and includes both licit and illicit drugs. • Substance abuse: Frequently used broad range of substances (including alcohol and inhalants) that can fit the addictive profile.
  • 4. Drug addiction and drug abuse • Dependence: – Psychological dependence is the subjective feeling that the user needs the drug to maintain a feeling of well-being. Eg: cocaine – Physical dependence is characterized by tolerance (the need for increasingly larger doses in order to achieve the initial effect) and withdrawal symptoms when the user is abstinent. • addiction to morphine (reward pathway) • dependence to morphine (thalamus and brainstem)
  • 5. Drug use terms and descriptions • Drug: In medicine, it refers to any substance with the potential to prevent or cure disease or enhance physical or mental well-being. In pharmacology, drug refers to any agent that alters the biochemical or physiological processes of tissue or organism. • Street drug: Drug that is taken for non-medicinal reasons (usually for mind-altering effects); drug abuse can lead to physical and mental damage and (with some substances) dependence and addiction. Eg: Alcohol, heroin, methamphetamine, crack, cocaine and marijuana (Cannabis). • Street drugs: http://www.streetdrugs.org
  • 6. Drug use terms and descriptions • Hard drug (lead to severe physical addiction): – Drug that is generally considered to be more dangerous, with a higher risk of dependence that soft drugs. Eg.: Heroin, methamphetamine, cocaine. • Soft drug (do not cause physical addiction): – While they do not cause physical addiction, some of them may still lead to psychological dependency. Psychological dependency is a dependency of the mind. This means that people feel better when they have the drug. Eg: lysergic acid diethylamide (LSD), Cannabis
  • 7. Drug use terms and descriptions • Illicit drug: AN illegal drug, can’t prescribed. Eg.: Cocaine, heroin, LSD, marijuana. • Designer drug: A synthetic drug very similar in chemical makeup to an existing drug and thus exerting similar. • Club drug: A drug whose use primarily occurs in clubs, bars and trance parities. E.g: Rohypnol, ketamine. (http://www.clubdrugs.org/) • Recreational drugs: – Recreational drugs are those used for non medicinal purposes, in particular, for fun or leisure. – Eg.: methamphetamine (potent psychostimulant of the phenethylamine), that is used to treat attention deficit hyperactivity disorder (ADHD), drive long distances and obesity
  • 8. Drug use terms and descriptions • Adulterants: drugs that are added to mimic or enhance the effects of the drug being offered. Example, sometimes amphetamines have been cut with caffeine or ephedrine • Diluents: Compounds such as sugars or baking soda that are used to increase the bulk of the drug sample.
  • 9. Types of Abused Substances • Legal Substances – Legal substances, approved by law for sale over the counter or by doctor's prescription, include caffeine, alcoholic beverages, nicotine, and inhalants (nail polish, glue, inhalers, gasoline). – Prescription drugs such as tranquilizers, amphetamines, benzodiazepines, barbiturates, steroids, and analgesics can be knowingly or unknowingly overprescribed or otherwise used improperly.
  • 10. Types of Abused Substances • Illegal Substances – Prescription drugs are considered illegal when diverted from proper use. – Morphine, and synthetic opiates, such as fentanyl, are most often abused by people in the medical professions, who have easier access to these drugs. – Other illegal substances include cocaine and crack, marijuana and hashish, heroin, hallucinogenic drugs such as lysergic acid diethylamide, phencycline or "angel dust", "designer drugs" such as MDMA (Ecstasy), and "party drugs" such as GHB (gamma hydroxybutyrate).
  • 11. Motivations for Drug Use • People take drugs for many reasons, and they may take stimulants to keep alert, or cocaine for the feeling of excitement it produces. – peer pressure – relief of stress – increased energy – to relax – to relieve pain – to escape reality – to feel more self-esteem, and for recreation. • Athletes and bodybuilders may take anabolic steroids to increase muscle mass
  • 12. Effects of Substance Abuse • The effects of substance abuse can be on many levels: – on the individual, – on friends and family, – on society.
  • 13. Effects of Substance Abuse- on individual • Around 10000 death causes by drug abuse in USA every year. • Many drug users engage in criminal activity, such as burglary and prostitution, to raise the money to buy drugs, and some drugs, especially alcohol, are associated with violent behavior. • Cocaine: anxiety, fatigue, depression, and an acute desire. • Marijuana and alcohol interfere with motor control and are factors in many automobile accidents. • Users of marijuana and hallucinogenic drugs may experience flashbacks, unwanted recurrences of the drug's effects weeks or months after use.
  • 14. Effects of Substance Abuse- on individual • Sharing hypodermic needles used to inject some drugs dramatically increases the risk of contracting AIDS and some types of hepatitis. • Heroin withdrawal can cause vomiting, muscle cramps, convulsions, and delirium.
  • 15. Effects of Substance Abuse-on friends and family • Marital problems and poor work performance • Pregnant drug users, because of the drugs themselves or poor self-care in general, bear a much higher rate of low birth-weight babies than the average.
  • 16. Effects of Substance Abuse- on society • Drug abuse affects society in many ways. • In the workplace it is costly in terms of lost work time and inefficiency. • Drug-related crime can disrupt neighborhoods due to violence among drug dealers, threats to residents, and the crimes of the addicts themselves. • Half of the highway deaths in the United States involve alcohol.
  • 17. Symptoms • Recurrent drug use may result in a failure to fulfill major role obligations at work, school, or home. • Repeated absences, tardiness, poor performance, suspensions, or neglect of duties in major life domains suggests drug abuse. • Recurrent drug use in situations in which it is physically hazardous is a sign of abuse. • Operating machinery, driving a car, swimming, or walking in a dangerous area while under the influence indicates drug abuse. • Recurrent drug-related legal problems, such as arrests for disorderly conduct or for driving under the influence, are indicative of abuse. • Recurrent use despite having persistent or recurrent social or interpersonal problems, caused or exacerbated by the effects of the drug, is indicative of abuse.
  • 19. Treatment • Treatment of substance abusers depends upon the severity and nature of the addiction, motivation, and the availability of services. • Pharmacological treatment • Fighting Substance Abuse • Supply Reduction • Reduction of demand for drugs • Legalization and decriminalization
  • 20. Treatment-Pharmacotherapy • Both pharmacological and behavioral treatments are used, often augmented by educational and vocational services. Treatment may include detoxification, therapy, and support groups, such as the 12-step groups Alcoholics Anonymous, Narcotics Anonymous, and Cocaine Anonymous. – Disulfiram is a medicine used in the treatment of alcoholism. – methadone or buprenorphine maintenance programs for heroin addiction.
  • 21. The main drugs of abuse Type Examples Dependence liability Narcotic analgesics Morphine Very strong Diamorphine Very strong General CNS depressants Ethanol Strong Barbiturates Strong Methaqualone Moderate Glutethimide Moderate Anaesthetics Moderate Solvents Strong
  • 22. The main drugs of abuse (continued) Anxiolytic drugs Benzodiazepines Moderate Psychomotor stimulants Amphetamines Strong Cocaine Very strong Caffeine Weak Nicotine Very strong Psychotomimetic agents LSD Weak or absent Mescaline Weak or absent Phencyclidine Moderate Cannabis Weak or absent