Because there is a theoretical basis that these effects may be additive, use of ergotamine-containing or ergot-type medications (like dihydroergotamine or methysergide) and naratriptan within 24 hours is contraindicated.
<ergotamine, advise, naratriptan>, <ergot-type medications, advise, naratriptan>, <dihydroergotamine, advise, naratriptan>, <methysergide, advise, naratriptan>