化合物详情

Symptoms of overdose include convulsions, tremor, paralysis, inactivity, ptosis, erythema of the extremities, abnormal respiration, cyanosis, ataxia, mydriasis, salivation, and lacrimation.

Subcutaneous, Oral, Nasal, Transdermal

The 5-HT_1B and 5-HT_1D receptors function as autoreceptors, which inhibit the firing of serotonin neurons and a reduction in the synthesis and release of serotonin upon activation. After sumatriptan binds to these receptors, adenylate cyclase activity is inhibited via regulatory G proteins, incrases intracellular calcium, and affects other intracellular events. This results in vasoconstriction and inhibtion of sensory nociceptive (trigeminal) nerve firing and vasoactive neuropeptide release. Sumatriptan stimulates 5-HT receptors of the 1D subtype, most likely presynaptic receptors, resulting in selective vasoconstriction of inflamed and dilated cranial blood vessels in the carotid circulation. Sumatriptan also blocks the release of vasoactive neuropeptides from peri...

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

References: DOI:10.1016/j.drudis.2016.02.015

A review of four European adverse reaction databases found 26 reported cases of painful, burning nipples, painful breasts, breast engorgement and/or painful milk ejection in women who took a triptan while nursing. Pain was sometimes intense and occasionally led to decreased milk production. Pain generally subsided with time as the drug was eliminated. The authors proposed that triptans may cause vasoconstriction of the arteries in the breast, nipples, and the arteries surrounding the alveoli and milk ducts, causing a painful sensation and a painful milk ejection reflex.