cyproheptadine
Treatment for Cluster Headache
Cyproheptadine is a first-generation antihistamine with antiserotonergic properties that acts as an antagonist at 5-HT2A and 5-HT2C receptors, potentially modulating serotonergic neurotransmission implicated in cluster headache pathogenesis. By blocking these serotonin receptors, it may help reduce the frequency and intensity of cluster headache attacks, though its precise mechanism in this context is not fully elucidated.