title: Resistance to tetrodotoxin in toad sympathetic nerves.
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001001:Anura; D004386:Duodenum / Q000187:drug effects; D004558:Electric Stimulation; D007421:Intestine, Small / Q000294:innervation; D012584:Sciatic Nerve / Q000187:drug effects*; D013153:Splanchnic Nerves / Q000187:drug effects*; D009435:Synaptic Transmission / Q000187:drug effects; D013779:Tetrodotoxin / Q000494:pharmacology*
chemical_list: D013779:Tetrodotoxin