Hypnic headache syndrome is a rare benign disorder which occurs in the elderly. It presents as a holocephalic or, less frequently, hemicranial headache during night sleep, lasting between 20 and 180 min; it is not associated with autonomic signs and responds well to lithium carbonate. We report a new case which responded well to indomethacin, and suggest that indomethacin may be used as an alternative treatment in this rare headache syndrome of the elderly.
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Iváñez et al. (1998) studied this question.
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