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Pharmacodynamics
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How drugs affect the body
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What are the 7 drug actions?
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Stimulating actionDepressing actionAntagonizing actionStabilizing actionReplacing actionDirect constructive chemical reactionDirect harmful chemical reaction
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Stimulating Action
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The direct effects of a receptor agonist that stimulates the body
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Depressing Action
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The direct effects of a receptor agonist that depresses the body
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Antagonizing Action
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A drug binding to a receptor without activating it
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Stabilizing Action
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A drug causing a neutral reaction
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Replacing Action
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The accumulation of a substance in the system
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Direct Constructive Chemical Reaction
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When a drug produces beneficial results
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Direct harmful chemical reaction
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When a drug causes cell destruction
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Receptor
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A protein molecule in a cellular membrane that can bind to a complementary molecule
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Agonist
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A chemical capable of activating a receptor to generate a therapeutic response
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Partial Agonist
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An agonist that only partially activates a receptor
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Enzymes
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Proteins that are capable of producing chemical changes
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Transport Molecules
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Molecules capable of transporting proteins from one cellular structure to another
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Ion Channels
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Membrane proteins
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