Multiple choice Which of the following can be excluded from the category of barbiturate drugs? Methohexital Thiamylal Diazepam Sodium thiopental Reveal answer Fill a bubble to check yourself C Correct answer Explanation Diazepam is a benzodiazepine derivative drug. It is commonly used for treating anxiety, insomnia, seizures including status epilepticus, muscle spasms (such as in cases of tetanus), and Ménière's disease.