The document discusses the dangers of drug misuse and abuse, including addiction, side effects, tolerance and dependence, withdrawal, drug interactions, impurities, health risks like hepatitis and HIV, risks to fetuses, legal risks and costs, and effects on family and friends. It provides information on various physical and mental health consequences of drug use as well as legal and social costs to individuals and society.

1. Legal and illegal
Drugs
• Drug Abuse and the Brain
• Addiction
• Is the compulsive use of a drug
• Despite any cost to health, family, or social standing
• Disease that changes the structure and chemistry of the
brain

2. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Side Effects
• An unwanted physical or mental effect cause by a drug
• Examples
• Nausea
• Dizziness
• Drowsiness
• Side Effects differ for everyone

3. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Tolerance and Dependence
• When someone uses a drug repeatedly the body may
develop tolerance to the drug
• Tolerance may lead to drug dependence
• Body develops a chemical need for the drug and cant function
normally without it

4. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Withdrawal
• If they stop taking the drug
• Symptoms include
• Nausea or vomiting
• Headaches or dizziness
• Fever
• Digestion problems
• Paranoia or panic
• Tremors, seizures, or death

5. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Drug Interactions
• Antagonism
• Drug antagonism
• Occurs when each drug’s effect is canceled out or reduced by
the other
• Synergism
• Drug synergism
• Occurs when drugs interact to produce effects greater than
those that each drug would produce alone

6. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Impurities
• Many illegal drugs are contaminated with chemicals that
may themselves be harmful or cause dangerous drug
interactions
• May vary from batch to batch

7. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Other Health Risks
• Hepatitis and HIV
• If drug users share needles to inject drugs, contaminated blood
left in the needle can carry disease causing viruses from user to
user
• May cause hepatitis B or C
• Can cause AIDS
• Disease that has no cure

8. Legal and illegal
Drugs
• Dangers of Drug Misuse and Abuse
• Other Health Risks
• Risks to Fetus and Newborn
• Drug abuse by a pregnant woman places her baby at risk for
problems
• Can have many different problems

9. Legal and illegal
Drugs
• Legal Risks and Other Costs
• Legal Risks
• Penalties can carry long prison terms and heavy fines
• Will have criminal record
• May make it difficult to get a job or admitted into schools

10. Legal and illegal
Drugs
• Legal Risks and Other Costs
• Effects on Family and Friends
• Can often become strained as the behavior of the user
changes
• May be unpredictable mood swings, violent, or withdrawn
• Can cause friends and family to grow a part

11. Legal and illegal
Drugs
• Legal Risks and Other Costs
• Costs to Society
• Government has spent billions of dollars in efforts to stop
illegal drug manufacture and sales
• Costs of Drug Abuse
• Imprisoning thousands of people for drug related crimes
• Medical costs for illnesses and injuries
• Premature deaths from drug related homicides and crashes
• Lost work productivity because of drug dependency