valproate
Treatment for Cluster Headache
Valproate acts as a broad-spectrum antiepileptic drug that modulates neuronal excitability by enhancing GABA neurotransmission and inhibiting voltage-gated sodium channels. In cluster headache treatment, it is believed to stabilize neuronal membranes and reduce neurogenic inflammation, potentially decreasing the frequency and intensity of headache attacks. Its mechanism involves suppressing neuronal hyperexcitability in the trigeminovascular system, which is thought to be a key pathophysiological mechanism in cluster headache.