injuries and poisoning
Plant and Shrub Poisoning
Hemlock
Hemlock poisoning can cause symptoms within 15 minutes. People develop a dry mouth and later a rapid heartbeat, tremors, sweating, seizures, and muscle weakness. Water hemlock may cause vomiting and diarrhea, delirium, seizures, and coma. There is no antidote but doctors give people care to treat their symptoms. 