<prompt> All of the following drugs act on ionic channels except:NicotineInsulinGlibenclamideDiazepam  <response>: Ans. B. Insulina. insulin acts on enzymatic tyrosine kinase receptorsb. Nicotine acts on NM and NN receptors which are ion channel receptorsc. Diazepam acts on GABA-BZD-Cl channel complex that mediates entry of chlorided. Glibenclamide is a sulfonylurea that acts on ACh sensitive K channels. 