Which antidepressant is mentioned as a common example?

Fluoxetine is widely recognized as a common example of an antidepressant because it belongs to a class of medications known as selective serotonin reuptake inhibitors (SSRIs). SSRIs are frequently prescribed to treat major depressive disorder, anxiety disorders, and other mood-related conditions due to their efficacy in enhancing serotonin levels in the brain, which helps regulate mood and emotional well-being.

In contrast, the other options listed do not primarily function as antidepressants. Lansoprazole is a proton pump inhibitor used to treat gastrointestinal issues like acid reflux and ulcers. Hydrochlorothiazide is a thiazide diuretic that treats hypertension and fluid retention. Bupropion, while also an antidepressant, is less commonly referenced when discussing typical examples of medication classes compared to fluoxetine, which is often the initial FDA-approved SSRI and is widely researched and used in clinical practice.