Galen Pharmacology Exam 1 Practice Test

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MAOI prescription? Which drug would that be?

Desvenlafaxine

Amitriptyline

Lithium

Phenelzine

Monoamine oxidase inhibitors block the enzyme that breaks down certain brain chemicals, raising levels of serotonin, norepinephrine, and dopamine. Among the options, Phenelzine is the classic MAOI used as an antidepressant. The others belong to different drug classes: Desvenlafaxine is an SNRI, Amitriptyline is a tricyclic antidepressant, and Lithium is a mood stabilizer. Knowing this helps you recognize the MAOI by its class name and distinguish it from the others. Remember MAOIs require dietary restrictions and careful interaction checks with other serotonergic or adrenergic drugs due to potential serious interactions.