Alkaloid poison
An alkaloid poison was a type of poison. Borgia plants contained an alkaloid poison which was their only deadly property. ()

Doctor Leonard McCoy was familiar with the symptoms of alkaloid poisoning. In 2266, McCoy believed "Nancy Crater" was mistaken about having purportedly seen Crewman Darnell eating a borgia plant, as an autopsy had found no trace of poison in the dead crewman. ()

In 2364, Geordi La Forge reported that some weapons in a room on planet Ligon II contained traces of blood and poison with an alkaloid . ()

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Poisonous substances