Podcast
Questions and Answers
How do drugs primarily affect the body's functions?
How do drugs primarily affect the body's functions?
- By altering specific chemical reactions within the body (correct)
- By directly repairing damaged tissues and organs
- By providing essential nutrients that the body lacks
- By creating a protective barrier against external pathogens
Which of the following best describes the action of a drug that mimics a naturally produced molecule?
Which of the following best describes the action of a drug that mimics a naturally produced molecule?
- It blocks the production of the natural molecule.
- It duplicates the function of the natural molecule. (correct)
- It speeds up the metabolism of the natural molecule.
- It enhances the effects of other drugs.
What is the term for drugs that speed up the actions of the nervous system?
What is the term for drugs that speed up the actions of the nervous system?
- Analgesics
- Depressants
- Antagonists
- Stimulants (correct)
What term describes the interaction when drugs, used together, increase each other's effects?
What term describes the interaction when drugs, used together, increase each other's effects?
What is the term for the interaction when drugs cancel or reduce each other's effects?
What is the term for the interaction when drugs cancel or reduce each other's effects?
Antibiotics are effective against which type of infection?
Antibiotics are effective against which type of infection?
Why are antibiotics ineffective against viruses?
Why are antibiotics ineffective against viruses?
What is the primary reason medical doctors are advised to limit the prescription of antibiotics?
What is the primary reason medical doctors are advised to limit the prescription of antibiotics?
What is a potential consequence of abruptly discontinuing the use of heroin?
What is a potential consequence of abruptly discontinuing the use of heroin?
What effect does alcohol consumption have on an individual's reaction time?
What effect does alcohol consumption have on an individual's reaction time?
Which category of drugs includes medications designed to alleviate pain?
Which category of drugs includes medications designed to alleviate pain?
What is a common effect of drugs described as 'depressants'?
What is a common effect of drugs described as 'depressants'?
What is the primary risk associated with taking medicinal drugs without a prescription from a health professional?
What is the primary risk associated with taking medicinal drugs without a prescription from a health professional?
What is a common consequence of taking drugs for nonmedical purposes?
What is a common consequence of taking drugs for nonmedical purposes?
Which of the following is an example of a commonly abused depressant drug that can cause severe withdrawal symptoms?
Which of the following is an example of a commonly abused depressant drug that can cause severe withdrawal symptoms?
What distinguishes medicinal drugs from recreational or social drugs?
What distinguishes medicinal drugs from recreational or social drugs?
Considering drug interactions, if Drug A blocks the effect of Drug B in the body, what kind of interaction is most likely occurring?
Considering drug interactions, if Drug A blocks the effect of Drug B in the body, what kind of interaction is most likely occurring?
A patient is prescribed an antibiotic for a sinus infection. What aspect of the doctor's instructions is MOST crucial for preventing antibiotic resistance?
A patient is prescribed an antibiotic for a sinus infection. What aspect of the doctor's instructions is MOST crucial for preventing antibiotic resistance?
Imagine a new drug is developed that enhances cognitive function by mimicking a specific neurotransmitter in the brain. What is the MOST likely mode of action of this drug?
Imagine a new drug is developed that enhances cognitive function by mimicking a specific neurotransmitter in the brain. What is the MOST likely mode of action of this drug?
A hospital patient is taking a painkiller and an antidepressant. The interaction between these drugs causes a dangerous drop in blood pressure. What type of drug interaction is MOST likely responsible?
A hospital patient is taking a painkiller and an antidepressant. The interaction between these drugs causes a dangerous drop in blood pressure. What type of drug interaction is MOST likely responsible?
Flashcards
What is a drug?
What is a drug?
Any chemical taken into the body affecting its functions by altering specific chemical reactions.
Medicinal drugs
Medicinal drugs
Drugs used to treat, cure, or prevent diseases.
Recreational/Social drugs
Recreational/Social drugs
Drugs used for nonmedical purposes.
Stimulants
Stimulants
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Depressants
Depressants
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Synergism
Synergism
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Antagonism
Antagonism
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What do medicinal drugs include?
What do medicinal drugs include?
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Antibiotics
Antibiotics
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Drug tolerance
Drug tolerance
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Depressant Drug
Depressant Drug
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Study Notes
Drugs and Their Modes of Action
- A drug is a chemical taken into the body that affects bodily functions by altering specific chemical reactions.
- Medicinal drugs treat, cure, or prevent disease.
- Recreational or social drugs are for nonmedical purposes.
- Some drugs mimic molecules naturally in the body.
- Other drugs block the effects of naturally produced molecules.
- Stimulants speed up the nervous system, making people feel more alert.
- Depressants slow down the nervous system, making people feel more relaxed or sleepy.
- Synergism is when drugs interact to produce an increased effect.
- Antagonism is when drugs reduce or cancel each other's effects.
Medicinal Drugs
- Medicinal drugs include pain-relief medications, antifungal drugs, and antibiotics.
- Medicinal drugs protect and relieve symptoms, but can have harmful effects if not taken as prescribed.
- Antibiotics treat bacterial infections.
- Antibiotics are efficient because they target only bacteria and do not harm human cells.
- Antibiotics do not target viruses because viruses have different structures and mechanisms than bacteria.
- Doctors prescribe antibiotics only when necessary to reduce antibiotic resistance, and instruct patients to adhere to the dosage and course.
Drug Misuse and Addiction
- Some drugs are taken for nonmedical reasons, leading to tolerance and health problems.
- Heroin is a commonly abused, highly addictive depressant drug that causes severe withdrawal symptoms if abruptly discontinued.
- Alcohol is a depressant that slows reaction time.
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