This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
False about mechanism of action of anticonvulsants is: 
Select and explain. 
A. Ethosuximide-K+ channel opener, B. Phenytoin- Na+ channel blocker, C. Diazepam- Facilitates GABA action, D. Gabapentin - Increase GABA release
A: Ethosuximide-K+ channel opener
Answer: A: Ethosuximide-K+ channel opener 
Explanation: Ethosuximide reduces low threshold calcium currents ( T currents) in the thalamic neurons. All the other given options are true. REF KD TRIPATHI 8TH ED. Page no 226