Tetrodotoxin, saxitoxin, and related substances: their applications in neurobiology.

Animals Axons/drug effects Cardiovascular System/drug effects Central Nervous System/drug effects Dose-Response Relationship, Drug Fishes/metabolism Guanidines/biosynthesis,pharmacology Heart/drug effects Muscle, Smooth/drug effects Muscles/drug effects Nervous System/drug effects Neurilemma/drug effects Neuromuscular Junction/drug effects Peripheral Nerves/drug effects Ranvier's Nodes/drug effects Respiration/drug effects Shellfish Synaptic Transmission/drug effects Tetrodotoxin/administration & dosage,analysis,biosynthesis,pharmacology Toxins, Biological/biosynthesis

Guanidines Toxins, Biological Tetrodotoxin