This webpage is maintained by the Centers for Disease Control and Prevention (CDC). The webpage provides information and resources on Brevetoxin. "After oral ingestion, brevetoxin poisoning is characterized by a combination of gastrointestinal and neurologic signs and symptoms. The incubation period ranges from 15 minutes to 18 hours. Gastrointestinal symptoms include abdominal pain, vomiting, and diarrhea. Neurologic symptoms include paresthesias, reversal of hot and cold temperature sensation, vertigo, and ataxia. Inhalational exposure to brevetoxin results in cough, dyspnea, and bronchospasm (1-5)."
Centers for Disease Control and Prevention: http://www.cdc.gov/