, Neuroactive Steroids , [ 22 ] Niacin / Niacinamide , Nonbenzodiazepines , Propofol , Stiripentol , [ 23 ] Theanine , Valerenic Acid , Volatile / Inhaled Anesthetics , Lanthanum. [ 24 ] Negative Allosteric Modulators: Flumazenil , Gabazine , Ro15-4513 , Sarmazenil , Zinc [ 25 ] . Non-competitive