mechanisms of drug actions

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8 Terms

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Agonist

Enhances nerve signals by mimicking a natural neurotransmitter, binding to receptors to either; trigger a strong response, increase availability, or block reuptake.

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Antagonist

Blocks/reduces a neurotransmitter by binding without activating it, essentially putting a stop sign on the receiving neuron.

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Inverse Agonist

Puts the brakes on neurons by binding to always slightly active receptors. Calms neural signals, resulting in decreased signalling.

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Reuptake Inhibitors

Blocks neurons from sucking back up their own chemical messengers after a signal is sent.

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Diphenhydramine

Antagonist

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Morphine

Agonist

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Caffeine

Inverse Agonist

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Cocaine

Reuptake Inhibitor