poloxin noun1 •The kinase inhibitor 2-methyl-5-(1-methylethyl)-1-[O-(2-methylbenzoyl)oxime]-2,5-cyclohexadiene-1,4-dioneThere has been some concern that poloxin causes unacceptable levels of cytotoxicity, and a critical assessment of the efficacy and safety of these PBD inhibitors should be conducted [3] . — 2015