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Using Drugs to Promote Health


Using Drugs to Promote Health Chapter 7 Lesson 1 – PowerPoint PPT presentation

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Title: Using Drugs to Promote Health

Using Drugs to Promote Health
  • Chapter 7 Lesson 1

Developing Vocabulary Answers
  1. I. Tolerance
  2. H. Side Effect
  3. A. Drug
  4. C. Over the Counter
  5. G. Psychological Dependence
  6. D. Pharmacist
  7. B. Medicine
  8. J. Withdraw
  9. F. Prescription Drug
  10. E. Physical Dependence

Ways Drugs Enter the Body
  • A drug is a substance other than food that
    changes to way the mind or body works.

Drug Misuse Drug Abuse
Incorrect use of a legally purchased drug. Innocent misuse. Taking the wrong dosage on accident. Could have life threatening side effects. Use of an illegal drug. Intentional misuse of a legal drug. Taking a prescription meant for someone else. Life threatening side effects.
Ways drugs enter the body
  • Medicine is a drug that is used to treat,
    prevent, and/or relieve illness symptoms.
  • Antibiotics fight disease
  • Cough suppressants relieve symptoms
  • Vaccines prevent disease

Ways Drugs Enter the Body
  • Drugs and the cells of the body are like keys and
  • A key (drug) can only open up certain locks
  • Receptor sites on cells are similar to locks on

How Drugs enter the Body
  • In order from quickest acting to slowest
  • Injection
  • Absorption
  • Inhalation
  • Swallowing (mouth)

How Drugs Effect the Body
  • Drugs may act on more than one receptor site at a
    time. Causing Side Effects
  • A side effect is an unwanted change in the body
    that is not related to the main purpose of the
  • Example If you take an asprin for a headache,
    sometimes it will give you a stomach ache if you
    dont take it with food.

Get Creative!
  • We discussed how the drug and body cell are like
    a lock and key. The drug can only fit in one
    receptor cell on the cell.
  • Your task
  • Draw a representation of the lock and key or
    the drug and its receptor. Be creative. Do not
    draw a lock and key. Find another way to
    represent the drug locking on to the body cell.
  • Use color.
  • Label the drug and the receptor.

Factors that Determine a Drugs Effect
  • The way the drug enters the body
  • The dose or amount of the drug taken
  • The solubility of the substance
  • Water soluble drugs leave the body quickly, fat-
    soluble drugs can stay for weeks to months
  • The weight, age, and health status of the person
  • The emotional state of the person
  • Whether the person is taking more than one drug
    at a time.

Factors that Determine a Drugs Effects
  • Drugs can cause unwanted effects, the most
    serious being dependence.
  • Drug dependence is the continued need for the
    effects of a drug even when those effects harm
    the body, mind and relationships.
  • Psychological Dependence- strong emotional desire
    to continue to use a drug
  • Physical Dependence- a condition in which someone
    develops a tolerance for a drug or shows withdraw
    symptoms without it.

How Drugs Affect the Body
  • Tolerance is what happens when the body becomes
    used to a drug and needs a larger amount to
    produce the same effects.
  • Withdrawal symptoms are unpleasant reactions that
    occur when a drug is no longer present in the

Prescription and Over-the-Counter Drugs
  • Prescription Drugs- a medication that can only be
    obtained with a written order from a physician.
  • Brand name drug has a registered name or
    trademark assigned to it by the company that
    makes it. (Lipitor)

Prescription and Over-the-Counter Drugs
  • A Generic Drug is a drug that contains the same
    active ingredients as a brand-name drug, but has
    no registered trademark.
  • Generic Drugs are usually less expensive.

Prescription and Over-the-Counter Drugs
  • An over the counter (OTC) drug is a drug that
    people can buy without a physicians
  • OTC drugs include
  • Pain relievers
  • Some Allergy medications
  • Cough syrups

Prescription and Over-the-Counter Drugs
  • Regardless of whether the medicine you are taking
    is a prescription or an over the counter drug,
    you should read all of the warnings and dosage
    information to ensure that you do not have any
    unwanted side effects.
  • Do not use the medication it is past its
    expiration date.
  • If the tamper resistant seal is broken, take the
    medication back.
  • If the label says the medication may cause
    drowsiness, do not engage in an activity such as
    riding a bike.

Use and Misuse
  • In your groups, you will be examining an OTC
    label. Each group will have one container. You
    will need to find all or most of the information
    asked for in the OTC Seek and Find worksheet.
  • Following this, each student will need to explain
    one way the drug could be misused and the
    possible effects of misuse.
  • You will have 3-4 minutes with each container.