Varenicline is best described as which of the following?

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Prepare for the Certified Addictions Registered Nurse (CARN) Advanced Practice Test. Utilize flashcards and multiple-choice questions, complete with hints and explanations. Boost your readiness for the exam!

Multiple Choice

Varenicline is best described as which of the following?

Explanation:
Varenicline works as a partial agonist at nicotinic acetylcholine receptors, especially the α4β2 subtype, in the brain’s reward pathways. By partially stimulating these receptors, it helps reduce withdrawal and cravings, while also occupying the receptor so that nicotine cannot produce its full reinforcing dopamine release if smoking occurs. It is not an NMDA receptor antagonist and not a serotonin reuptake inhibitor, nor does it fully activate nicotine receptors, which is why the partial agonist description best fits.

Varenicline works as a partial agonist at nicotinic acetylcholine receptors, especially the α4β2 subtype, in the brain’s reward pathways. By partially stimulating these receptors, it helps reduce withdrawal and cravings, while also occupying the receptor so that nicotine cannot produce its full reinforcing dopamine release if smoking occurs. It is not an NMDA receptor antagonist and not a serotonin reuptake inhibitor, nor does it fully activate nicotine receptors, which is why the partial agonist description best fits.

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