Which anti-epileptic is most likely to cause hyponatremia? 

A. Carbamazepine

B. Dilantin

C. Valproic Acid 

D. Lacosamide

E. Levetiracetam

Answer is A - Carbamazepine or Tegretol

Bonus Question: What is the first line management in Trigeminal Neuralgia? 

Answer: Carbamazepine or Tegretol