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Pharmacology
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The Study of Drugs
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Pharmacokinetic's
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Refers to the activities in the body after the drug is administered.
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Pharmacodedynamics
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The Study of what the drug does to the body.
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Pharmocotheaeputics
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The study of drugs and there relations ship to treatment of disease.
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Pharmacy
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Fill the medication
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Posology
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The study of the amount of the drug that is required, to produce therapeutic effects.
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Toxicology
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The science dealing with toxic effects of drugs
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Pharmacgnosy
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The study of natural drugs.
Eg: St. John Wart " for depression" |
Absorption
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Follows administration and in the process by which a drug is made available for use in the body.
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Factors that Effect the rate of absorption:
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*Route of administration
*Solubility of the Drug * Presence of certain body conditions |
Distribution
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Systemic circulation distributes drugs to various body tissues on target sites.
* some drugs travel by binding to protein (albumin) in the blood. * a drug is inactive when bound to protein |
*Protein, Drug, Tissues (The process)
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Protien molecules release drug, diffuses into tissue, interact with receptors, produce a therapeutic effect.
Blood level must be maintained for drugs to be effective. |
Blood level (down)
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Drug will not produce desired effect. (below a therapeutic level)
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Blood level (up)
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Toxic Symptoms develop, cover therapeutic level
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Biotransformation
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Is also known as Metabolism
Is the process by wich a drug is converted through a series of chemical reactions. |