Question

Which of the following drugs is a selective serotonin reuptake inhibitor (SSRI)?

• A. Fluoxetine
• B. Amitriptyline
• C. Haloperidol
• D. Diazepam

Hint:

Common \textbf{SSRIs} to remember for exams:

• \textbf{Fluoxetine}
• \textbf{Sertraline}
• \textbf{Paroxetine}
• \textbf{Citalopram}
• \textbf{Escitalopram}

Mnemonic: \textbf{“FSPCE”} (Fluoxetine, Sertraline, Paroxetine, Citalopram, Escitalopram).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Selective Serotonin Reuptake Inhibitors (SSRIs) are a class of drugs typically used as antidepressants.
They work by increasing serotonin levels in the brain by blocking its reabsorption (reuptake) into neurons.
Step 2: Key Approach:
Evaluate each of the given drugs and classify them based on their pharmacological mechanism of action.
Step 3: Detailed Explanation:
Fluoxetine is an antidepressant that selectively inhibits the reuptake of serotonin, making it a classic SSRI.
Amitriptyline belongs to the class of Tricyclic Antidepressants (TCAs), which inhibit both serotonin and norepinephrine reuptake non-selectively.
Haloperidol is a typical antipsychotic medication that works primarily by blocking dopamine D2 receptors in the brain.
Diazepam is a benzodiazepine that enhances the effect of the inhibitory neurotransmitter GABA.
Thus, Fluoxetine is the only SSRI among the options.
Step 4: Final Answer:
Fluoxetine is the correct SSRI.