This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
In case of hepatic porphyria the safe anticonvulsant is 
Select and explain. 
A. Clonazepam, B. Paraldehyde, C. Phenytoin, D. Carbamazepine
A: Clonazepam
Answer: A: Clonazepam 
Explanation: (A) Clonazepam > Seizures can be due to neurologic effects or to hyponatremia.> Treatment of seizures is difficult because virtually all antiseizure drugs (except bromides) may exacerbate> AIP (clonazepam may be safer than phenytoin or barbiturates).