This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
Which one of the following is not a useful drug for the initial management of a case with status epilepticus? 
Select and explain. 
A. IV phenytoin, B. IV clobazam, C. TV thiopental, D. IV sodium valproate
B: IV clobazam
Answer: B: IV clobazam 
Explanation: At present, early recognition of the condition and treatment with oral or rectal benzodiazepines is recommended; oral clobazam has proven to be an effective treatment. In patients who have repetitive attacks of complex paial status epilepticus, oral or iv clobazam (1020 mg/day) over a period of 23 days given early at home can usually abo the status epilepticus Ref Harrison20th edition pg 2567