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Medicine and Illegal Drugs Unit

Learn about medicines and illegal drugs, their effects, how they enter the body, and the difference between drug use, misuse, abuse, and addiction. Understand terms like dosage, drug interactions, side effects, tolerance, and withdrawal symptoms. Improve your knowledge to make informed decisions.

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Medicine and Illegal Drugs Unit

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  1. Medicine andIllegal 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. *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

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