1. Medicine and Illegal Drugs Unit
Chapter 16

2. Medicines and Illegal drugs
Drug- any chemical substance that causes
a change in a person’s physical or
psychological state
Medicine- any drug that is used to cure, prevent, or treat illness or discomfort.
*unlike food, drugs do not give your body
nourishment

3. 5 Ways that drugs enter the body
1. Ointments or liquids applied directly to
an area
-antibiotic ointment

4. 2. Transdermal- patches that allow drugs to be absorbed through the skin.
- nicotine patch

5. 3. Smoked or inhaled- absorbed into the
blood vessels in the lungs
nasal sprays, inhaler, cocaine
THC, nicotine

6. 4. Injected- enter directly into blood stream through hypodermic needle,
usually have stronger affect
- antibiotics, heroine

7. 5. Orally- swallowed and absorbed through the stomach or intestines
- aspirin, ibuprofen, alcohol,
amphetamines

8. Medicines Prescription- medicine that can be bought
only with a written order
from a doctor

9. 2. OTC (over the counter)- any medicine
that can be bought without a
prescription
** Know how to read the label for OTC drugs

10. Dosage- the amount of the drug needed or recommended to have the intended effect for the patient.
Drug Interaction- the effect of a drug can be
different from expected if the drug is taken
at the same time as another drug

11. Side Effect- is any effect that is caused
by a drug and that is different from the
drug’s intended effect
Tolerance- the ability of your body to resist the effects of a drug

12. drug than a persons body can safely process
*Overdose- taking a larger amount of a
drug than a persons body can safely
process

13. Drug abuse and addiction
1. Use- to use a drug for its intended purpose
2. Misuse- to use a drug for a purpose
other than it is intended
3. Abuse- to take more than the
recommended amount or the
use of any illegal drug

14. 4. Drug Addiction- the uncontrollable use
of a drug, a person becomes physically and mentally dependent on the drug
Withdrawal- The process that occurs when an addicted person stops taking the drug. May have severe symptoms or death.

15. A. Physical Dependence- the body’s
chemical need for a drug
- heroine, alcohol, tobacco, amphetamines
- withdrawal- anxiety, fever, cramps
nausea, seizures

16. B. Psychological Dependence- emotional or
mental need for a drug
- marijuana, LSD, ecstasy
-withdrawal- depression, nervousness,
irritability