<prompt> Which of the following drugs do not act through the ion channel receptorsNicotineInsulinGliclazideDiazepam  <response>: Insulin acts through enzyme-linked receptor - tyrosine kinase acts through: gliclazide- potassium channels, nicotine-nicotinic acetylcholine channels, diazepam- GABA channels Ref: KD Tripathi 8th ed 