This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Pharmacology
[{'content': 'An Anti epileptic drug, but NOT a mood stabalizer includes \nSelect and explain. \nA. Topiramate, B. Lamotrigine, C. Sodium valproate, D. Leviracetam', 'role': 'user'}, {'content': 'Answer: D \nExplanation: (D) Leviracetam# VALPROIC ACID: Available in extended release form. This drug can be very irritating to the stomach, especially when taken as valproic acid. Liver function and CBC should be monitored.> Lamotrigine: Particularly effective for bipolar depression. Usual dose is 100-200 mg daily, which can be built up by 25 mg every 2 weeks. The patient should be monitored for signs and symptoms of Stevens-Johnson syndrome, a very rare but potentially fatal skin condition.> Carbamazepine: CBC should be monitored, as carbamazepine can lower white blood cell count. Therapeutic drug monitoring is required. Carbamazepine was approved by the US Food and Drug Administration as a bipolar disorder treatment in 2005, but had been widely used previously.> Oxcarbazepine: Oxcarbazepine is not FDA approved for bipolar disorder. Still, it appears to be effective in about one-half of patients with bipolar disorder and be well tolerated.> Other anticonvulsants, such as gabapentin and topiramate, also are mood stabilizers.', 'role': 'assistant'}]