This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the following statements about antiepileptics is false? 
Select and explain. 
A. Phenytoin and carbamazepine act by prolonging the inactivated state of Na+channels, B. Carbamazepine can be used in trigeminal neuralgias, C. Diazepam is an anticonvulsant drug, D. Lamotrigine mainly acts by causing GABA mediated Cl- channel opening
D: Lamotrigine mainly acts by causing GABA mediated Cl- channel opening
Answer: D: Lamotrigine mainly acts by causing GABA mediated Cl- channel opening 
Explanation: None