Midazolam, onazolam and triazolam are short-acting agents with durations of action of 3 to 8 hours. Alprazolam, Lorazepam , Estazolam, and Temazepam are intermediate-acting agents with durations of action of 11 to 20 hours.
Sir Neural tube defect is mentioned in valproic acid and the carbamazepine doubles the teratogenic effect in presence of valproate so if question comes like ... which drug among valproate and carbamazepine causes neural tube defect what should we choose ?