Using Drugs to Promote Health Chapter 7 Lesson 1

Developing Vocabulary Answers I. Tolerance H. Side Effect A. Drug C. Over the Counter G. Psychological Dependence D. Pharmacist B. Medicine J. Withdraw F. Prescription Drug 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 locks. A key (drug) can only open up certain locks (cells) Receptor sites on cells are similar to locks on doors.

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 drug. Example: If you take an asprin for a headache, sometimes it will give you a stomach ache if you don’t take it with food.

Factors that Determine a Drug’s 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 Drug’s 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 body.

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 physician’s prescription. 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.