化合物详情

Convulsive ergotism can cause painful seizures and spasms, diarrhea, paresthesias, itching, headaches, nausea and vomiting. Usually the gastrointestinal effects precede the central nervous system effects. As well as seizures there can be hallucinations and mental effects including mania or psychosis. Gangrenous ergotism causes dry gangrene as a result of vasoconstriction induced in the more poorly vascularized distal structures, such as the fingers and toes. Symptoms include desquamation, weak periphery pulse, loss of peripheral sensation, edema and ultimately the death and loss of affected tissues. (L1920, L1933)

Treatment for ergotism consists of vasodilators, anticoagulants and low molecular weight dextrans. If necessary, a sympathetic nerve blockade may be carried out, such as brachial plexus blockade. Temporary sedation (e.g. haloperidol) will be necessary in hallucination and diazepam is used for convulsions. There is no specific antidote. (L1921, L1933)

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Ingestion of ergoline alkaloids is known to cause the disease ergotism. Ergotism occurs in two forms, gangrenous and convulsive, likely depending on the different kinds and amounts of ergoline alkaloids present. (A2913, L1933)

Intravenous (L1362); Nasal (L1362). Interpatient variable and may be dependent on the administration technique

Two theories have been proposed to explain the efficacy of 5-HT_1D receptor agonists in migraine: 1) activation of 5-HT_1D receptors located on intracranial blood vessels, including those on arterio-venous anastomoses, leads to vasoconstriction, which correlates with the relief of migraine headache and 2) activation of 5-HT_1D receptors on sensory nerve endings of the trigeminal system results in the inhibition of pro-inflammatory neuropeptide release.

No indication of carcinogenicity to humans (not listed by IARC).

Reference: DOI:10.1016/j.drudis.2011.05.007

◉ Effects on Lactation and Breastmilk