A 53-Year-Old Woman Is Brought to the Emergency Department by Her

A 53-year-old woman is brought to the emergency department by her husband because of generalized tonic-clonic seizure. in the ER When she recovers, she tells the physician that she has difficulty sleeping and felt a chest palpitations before the episode. She has a history of insomnia and social anxiety disorder. She appears lethargic. Her temperature is 36.2°C (97.1°F) , pulse is 88/min, respirations are 12/min, and blood pressure is 110/80 mm Hg. Neurologic examination shows normal pupils. There is diffuse hypotonia and decreased deep tendon reflexes. Withdrawal from which of the following medications is the most likely explanation for this patient's presentation?

A) Lamotrigine
B) Lithium
C) Lorazepam
D) Oxycodone
E) Quetiapine
F) Sertraline
G) Valproate