dhe
Treatment for Cluster Headache
Dihydroergotamine (DHE) is a vasoconstrictor and serotonin receptor agonist that acts on 5-HT1B/1D receptors in cerebral blood vessels, effectively reducing neurogenic inflammation and causing vasoconstriction. It interrupts the trigeminovascular pathway in cluster headaches, providing rapid relief by blocking pain transmission and reducing blood vessel dilation. DHE is particularly effective in treating acute cluster headache episodes and can be administered via intranasal, subcutaneous, or intravenous routes.