Term
Definition of Pharmacology |
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Definition
Study of biomedical and physiological aspects of drug effects, in Absorption, Distribution, Metabolism, Elimination, toxicity, and specific mechanisms of drug action. |
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Term
What are the two main areas of Pharmacology? |
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Definition
Pharmacokinetics and Pharmacodynamics |
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Term
What is Pharmacokinetics? |
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Definition
This refers to the way the body handles drug ADME. Rational dosage regime is based on this. |
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Term
What is Pharmacodynamics? |
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Definition
The study of biochemical and physiologic effects of drugs and their mechanism of action. |
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Term
What are the three major routes of drug administration? |
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Definition
Enteral (GI Tract): Oral(PO), Sublingual, Rectal(PR) Parental: Intravenous(IV), Intramuscular(IM), Subcutaneous(SC) Others: Inhalation, Intranasal, Intrathecal/Intraventricular, Topical, Transdermal |
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Term
Which route of drug administration is most commonly used and easy to access? |
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Definition
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Term
Which routes of drug administration go directly to the blood? |
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Definition
Sublingual, Intravenous, Inhalation |
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Term
Which routes of drug administration only go to a local area? |
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Definition
Topical, Intramuscular, Subcutaneous |
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Term
Which route of drug administration is absorbed 50% in the blood and 50% in the liver? |
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Definition
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Term
What are the five factors on which the formulation of the drug depends? |
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Definition
Barriers, setting, urgency, stability, First Pass Effect |
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Term
What is the First Pass Effect? |
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Definition
The effect of liver metabolism prior to reaching the systemic circulation, when drugs are taken orally or rectally. |
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Term
By which methods do drugs cross cellular membranes? |
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Definition
Passive diffusion (high to low concentration). Active transport (low to high concentration). Water soluble drugs pass through aqueous channels. Lipid soluble drugs just move through the membranes. |
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Term
Is aspirin and other weak acidic drugs better absorbed through the stomach or intestines? |
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Definition
Stomach. Due to it's acidic environment. |
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Term
Are alkaline drugs better absorbed through the stomach or intestines? |
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Definition
Small intestine because is has a higher pH. (more alkaline) |
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