Complex sentence: A ganglionic blocker (or ganglioplegic) is a type of medication which inhibits postganglionic transmission, primarily by acting as a nicotinic antagonist, for example hexamethonium, pentolinium, mecamylamine, trimetaphan and pempidine.
Split into simpler sentences: A ganglionic blocker (or ganglioplegic) is a type of medication which inhibits postganglionic transmission, primarily by acting as a nicotinic antagonist. Examples include hexamethonium, pentolinium, mecamylamine, trimetaphan and pempidine.