Cluster headaches are one of the most painful conditions, causing severe unilateral pain around one eye, accompanied by tearing, nasal congestion, and restlessness. They occur in cyclical patterns (clusters) and respond to oxygen therapy and triptans.
Ergotamine is an ergot alkaloid used to treat migraine and cluster headache attacks through vasoconstriction.
Dihydroergotamine is an ergot alkaloid used to treat migraine and cluster headache attacks through vasoconstriction.
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