title: H1-blocker blocks ganglion blocker.
mesh_terms: D000818:Animals; D001794:Blood Pressure; D004115:Dimethindene / Q000494:pharmacology; D004285:Dogs; D004562:Electrocardiography; D005730:Ganglionic Blockers / Q000037:antagonists & inhibitors*; D006584:Hexamethonium Compounds / Q000037:antagonists & inhibitors; D006634:Histamine H1 Antagonists / Q000494:pharmacology*; D013569:Synapses / Q000187:drug effects
chemical_list: D005730:Ganglionic Blockers; D006584:Hexamethonium Compounds; D006634:Histamine H1 Antagonists; D004115:Dimethindene