Question:
Phenelzine is classified under which class of antidepressants
Phenelzine is classified under which class of antidepressants
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Antidepressants work by raising the levels of mood-related chemicals in the brain, such as serotonin and noradrenaline. Different classes do this in different ways.
Updated On: Jun 24, 2026
- Selective Serotonin Reuptake Inhibitors
- Benzodiazepines
- Tricyclic Antidepressants
- Monoamine Oxidase Inhibitors
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The Correct Option is D
Solution and Explanation
Concept:
Antidepressants work by raising the levels of mood-related chemicals in the brain, such as serotonin and noradrenaline. Different classes do this in different ways.
Step 1:
Phenelzine works by blocking an enzyme called monoamine oxidase. This enzyme normally breaks down the mood chemicals, so blocking it keeps more of them around. That makes Phenelzine a Monoamine Oxidase Inhibitor (MAOI).
Step 2:
It is not an SSRI (those are drugs like fluoxetine), not a benzodiazepine (those are anti-anxiety/sleep drugs), and not a tricyclic (those are drugs like amitriptyline with a three-ring structure).
Answer: Option (4) — Monoamine Oxidase Inhibitors.
Antidepressants work by raising the levels of mood-related chemicals in the brain, such as serotonin and noradrenaline. Different classes do this in different ways.
Step 1:
Phenelzine works by blocking an enzyme called monoamine oxidase. This enzyme normally breaks down the mood chemicals, so blocking it keeps more of them around. That makes Phenelzine a Monoamine Oxidase Inhibitor (MAOI).
Step 2:
It is not an SSRI (those are drugs like fluoxetine), not a benzodiazepine (those are anti-anxiety/sleep drugs), and not a tricyclic (those are drugs like amitriptyline with a three-ring structure).
Answer: Option (4) — Monoamine Oxidase Inhibitors.
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