Podcast
Questions and Answers
Which component is primarily studied in pharmacodynamics?
Which component is primarily studied in pharmacodynamics?
What is a factor that typically decreases drug absorption?
What is a factor that typically decreases drug absorption?
Which method of administration generally leads to higher absorption rates?
Which method of administration generally leads to higher absorption rates?
What is the concern associated with drug absorption during diarrhea?
What is the concern associated with drug absorption during diarrhea?
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What characterizes the mechanism of action for drugs?
What characterizes the mechanism of action for drugs?
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Which of the following drug forms is likely to have the highest absorption rate?
Which of the following drug forms is likely to have the highest absorption rate?
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What is one factor that can enhance drug absorption related to the patient?
What is one factor that can enhance drug absorption related to the patient?
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Which statement accurately describes the role of pharmacokinetics?
Which statement accurately describes the role of pharmacokinetics?
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Study Notes
Pharmacology Branches
- Pharmacodynamics
- Pharmacokinetics
- Pharmacotherapeutics
- Toxicology
Pharmacodynamics
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Mechanism of Action (MOA): Active components of cells form chemical bonds with drugs. Active parts include:
- Enzymes
- Ion channels
- Cell membranes
- Receptors
- DNA synthesis
- Chemical reactions (e.g., neutralization reactions like antacids)
- Physical reactions (e.g., adsorption with charcoal)
- Clinical use (desired effects of drugs)
- Side effects (undesired effects of drugs)
Pharmacokinetics
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Absorption: Transfer of drugs from administration site to blood circulation, primarily in the small intestine.
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Factors affecting absorption:
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Patient-related factors:
- Food presence (can decrease absorption, except for some drugs).
- Health condition (constipation increases, diarrhea decreases absorption).
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Drug-related factors:
- Liquid drugs absorb more easily than solid drugs.
- Parenteral administration (injection) is more effective than oral.
- Smaller drug particle size absorbs more readily than larger particle size.
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Patient-related factors:
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Factors affecting absorption:
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Description
This quiz covers key branches of pharmacology, including pharmacodynamics, pharmacokinetics, pharmacotherapeutics, and toxicology. It explores the mechanisms of drug action, absorption, and clinical effects, providing a comprehensive understanding of how drugs interact with the body. Perfect for students and professionals in the field of medicine.
