Medicines and Drugs Well-targeted answers for improved results.
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Lesson 1: The Role of Medicines - Answer Big Idea: Medicines are divided into classes
and have different effects on different people.
Types of Medicines - Answer - Main Idea: Medicines are classified based on how they
work in your body.
- People use medicines to help restore their health when t...
medicines and drugs well targeted answers for impr
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Medicines and Drugs Well-targeted answers for
improved results.
Lesson 1: The Role of Medicines - Answer Big Idea: Medicines are divided into classes
and have different effects on different people.
Types of Medicines - Answer - Main Idea: Medicines are classified based on how they
work in your body.
- People use medicines to help restore their health when they are ill.
Medicines Def: Drugs that are used to treat or prevent diseases or other conditions.
- All medicines are drugs, but not all drugs are medicines.
Drugs Def: Substances other than food that change the structure or function of the body or mind
- Drugs are effective in treating illness when taken as directed by a physician or according to the
label instructions.
Four Categories of Medicines that Treat or Prevent Illness
- Medicines that help prevent disease
- Medicines that fight pathogens
- Medicines that relieve pain and other symptoms
- Medicines that manage chronic conditions, help maintain or restore health, and regulate body's
systems
Preventing Disease - Answer - Today, we have medicines that prevent disease. About 95
percent of children receive vaccines.
- Vaccines Def: A preparation that prevents a person from contracting a specific disease
Vaccines
- Vaccines contain weakened or dead pathogens that cause the disease.
- When injected into your body, the vaccine produces antibodies that fight those pathogens.
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Antitoxins
- Antitoxins prevent disease and neutralize the effects of toxins.
- Antitoxins fight the bacteria that produce substances toxic to the body.
Fighting Pathogens - Answer - Medicines can also help your body fight the pathogens that
cause illness.
Antibiotics
- Antibiotics are a class of drug that destroy disease-causing microorganisms, called bacteria.
- Antibiotics work either by killing harmful bacteria in the body or by preventing bacteria from
reproducing.
- The bacteria that antibiotics kill have adapted to the drug over time.
- Bacteria can develop a resistance to antibiotics when antibiotics are overused, and when the
patient does not finish taking the full prescription.
- If you do not finish taking all of a prescription, you may not kill all of the bacteria.
- The remaining bacteria may develop a resistance, or immunity, to treatment.
Antivirals and Antifungals
- Antiviral drugs are used to treat some viral illnesses, such as the flu. They suppress the virus,
but do not kill it. - Like bacteria, viruses can develop a resistance to medications.
- Fungi are another type of pathogen that can infect the body.
- Antifungals can suppress or kill fungus cells, such as athlete's foot and ringworm.
Relieving Pain - Answer - The most commonly used medicines are analgesics, or pain
relievers.
- Aspirin is used to relieve pain and reduce fever. Other analgesics fight inflammation, or
redness, swelling, and pain.
- Children who take aspirin when they have a fever risk developing Reye's syndrome, a
potentially life-threatening illness of the brain and liver.
- For that reason, aspirin should not be given to anyone under the age of 20 unless directed by a
health care professional.
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