Which of the following is a mood stabilizer?

Which of the following is a mood stabilizer?

• A. Lithium
• B. Valproic acid
• C. Gabapentin
• D. Metoprolol

Answer: (A)

Mood stabilizers are medications that help prevent extreme mood swings in conditions like bipolar disorder, keeping a person's mood more even over time. Lithium is the classic example of a mood stabilizer and is widely used to treat mania and prevent future mood episodes, which is why it’s the best answer here. Because lithium has a narrow therapeutic window, it requires regular blood level checks and monitoring of kidney and thyroid function, along with attention to staying hydrated and maintaining consistent salt intake, since dehydration or salt changes can alter lithium levels. In contrast, gabapentin is primarily an anticonvulsant and nerve pain medication, metoprolol is a heart and blood pressure drug, and valproic acid, while also used as a mood stabilizer in some cases, is not the standout example that many medications-aide questions emphasize.

Mood stabilizers are medications that help prevent extreme mood swings in conditions like bipolar disorder, keeping a person's mood more even over time. Lithium is the classic example of a mood stabilizer and is widely used to treat mania and prevent future mood episodes, which is why it’s the best answer here. Because lithium has a narrow therapeutic window, it requires regular blood level checks and monitoring of kidney and thyroid function, along with attention to staying hydrated and maintaining consistent salt intake, since dehydration or salt changes can alter lithium levels. In contrast, gabapentin is primarily an anticonvulsant and nerve pain medication, metoprolol is a heart and blood pressure drug, and valproic acid, while also used as a mood stabilizer in some cases, is not the standout example that many medications-aide questions emphasize.