T-5342126 is a toll-like receptor 4 (TLR4) antagonist.1It reduces LPS-induced production of nitric oxide (NO) in RAW 264.7 cells (IC50= 27.8 μM), as well as decreases LPS-induced IL-8, TNF-α, and IL-6 production in isolated human whole blood (IC50s = 110.5, 315.6, and 318.4 μM, respectively). T-5342126 (82 mg/kg) reduces ethanol intake and the abundance of ionized calcium-binding adapter molecule 1 (Iba1), a marker of microglial activation, in the central nucleus of the amygdala in ethanol-dependent mice.2 1.Chavez, S.A., Martinko, A.J., Lau, C., et al.Development of β-amino alcohol derivatives that inhibit toll-like receptor 4 mediated inflammatory response as potential antisepticsJ. Med. Chem.54(13)4659-4669(2011) 2.Bajo, M., Montgomery, S.E., Cates, L.N., et al.Evaluation of TLR4 inhibitor, T5342126, in modulation of ethanol-drinking behavior in alcohol-dependent miceAlcohol Alcohol.51(5)541-548(2016)