Which of the following is most likely to be used as a substitute if the...

Escitalopram (Lexapro)is aselective serotonin reuptake inhibitor (SSRI)used formajor depressive disorder (MDD) and generalized anxiety disorder (GAD). If escitalopram isnon-formulary, a suitable alternative would besertraline (Zoloft), anotherSSRIwith a similar mechanism of action and indication.

A. Cabergoline→ Incorrect; cabergoline is adopamine agonistused to treathyperprolactinemia, not depression or anxiety.

B. Ciprofloxacin→ Incorrect; ciprofloxacin is afluoroquinolone antibiotic, unrelated to antidepressant therapy.

D. Amantadine→ Incorrect; amantadine is anantiviral and antiparkinsonianagent, not used for depression.

Other Answer Choices Explained:References:

PTCB PTCE Exam Content Outline (Pharmacology for Technicians – Nervous System Drugs)

Lexicomp Drug Monographs for SSRIs (Escitalopram & Sertraline)

Goodman & Gilman’s The Pharmacological Basis of Therapeutics