|Biological half-life||~12 hours|
|Chemical and physical data|
|Molar mass||134.18 g/mol|
|3D model (JSmol)|
Phenylethylidenehydrazine (PEH), also known as 2-phenylethylhydrazone or β-phenylethylidenehydrazine, is an inhibitor of the enzyme GABA transaminase (GABA-T). It is a metabolite of the antidepressant phenelzine and is responsible for its elevation of GABA concentrations. PEH may contribute to phenelzine's anxiolytic effects.
- Parent MB, Master S, Kashlub S, Baker GB (January 2002). "Effects of the antidepressant/antipanic drug phenelzine and its putative metabolite phenylethylidenehydrazine on extracellular gamma-aminobutyric acid levels in the striatum". Biochemical Pharmacology. 63 (1): 57–64. PMID 11754874. doi:10.1016/S0006-2952(01)00856-5.
- Duffy S, Nguyen PV, Baker GB (2004). "Phenylethylidenehydrazine, a novel GABA-transaminase inhibitor, reduces epileptiform activity in rat hippocampal slices". Neuroscience. 126 (2): 423–32. PMID 15207360. doi:10.1016/j.neuroscience.2004.03.007.