It is secobarbital ,of barbiturate class. which is a class B
drug if that's what you meant
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Some medications that contain barbiturates are Fiornal,
Donnatol, Fiorcet, and Allobarbital. Other drugs that have
barbiturates in them are Methohexital, Thiopental, and
Secobarbital.
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antiseizure drugs such as phenytoin (Dilantin) and carbamazepine
(Tegretol), anticoagulants such as warfarin (Coumadin), and drugs
that slow the central nervous system such as alprazolam (Xanax),
diazepam (Valium), and secobarbital (Seconal).