Ergot alkaloids are derived from a fungus, Claviceps purpurea, which grows primarily on rye grain. The fungus forms a hard blackish body known as a sclerotium, which contains alkaloid compounds that can be used to treat migraine headache.
Some alkaloids are poisonous. Ergot alkaloids can be toxic sometimes (and not just hallucinogenic). Other alkaloidal substances can be more benign.
Allan M. Goodeve has written: 'An investigation of the biosynthesis of ergot alkaloids'
Ergot is a type of fungus that grows on rye and some closely related plants. It produces highly toxic alkaloids, making food from infected crops very dangerous to eat!
Abortive medications include triptans, ergot alkaloids, NSAIDs, combination analgesics, and antiemetics.
May cause nausea, vomiting, diarrhea, weakness, itching, cold skin, thirst, tingling sensations, and severe muscle cramps; also may cause severe rebound headaches.
I think the explanation is: Ergot is a fungus the grows on grains, so maybe if you ate spoiled grain it could have had ergot on it?
Ergot is actually a specific genus of fungi called Claviceps. The most prominent member of genus Claviceps is Claviceps purpurea. Ergot grows on rye and related plants and produces a powerful hallucinogenic toxin called ergotamine, a precursor to LSD.
Ergot is the name of a toxic fungus that affects the rye plant.
Ergot is a kind of fungus that can infect cereal grains.
Ergot is the common name of a fungus in the genus Claviceps that is parasitic on certain grains and grasses.
John Tor-Agbidye has written: 'Correlation of endophyte toxins (ergovaline and lolitrem B) with clinical disease' -- subject(s): Diseases, Toxicology, Sheep, Ergotism, Ergot alkaloids, Fescue foot, Lolium perenne, Cows, Tall fescue
www.ergot.org