injection
Treatment for Cluster Headache
Sumatriptan injection is a selective serotonin 5-HT1B/1D receptor agonist that acts on cranial blood vessels and sensory nerve endings to constrict cerebral vasculature and inhibit neuropeptide release. By targeting these receptors, it rapidly reduces inflammation and alleviates pain associated with cluster headaches, providing quick symptomatic relief through neurovascular modulation.