概述
Triptans are migraine-specifc acute treatments. A well-accepted defnition of triptan failure is needed in clinical practice and for research. The primary aim of the present Consensus was to provide a defnition of triptan failure. To develop this defnition, we deemed necessary to develop as frst a consensus defnition of efective treat‑ ment of an acute migraine attack and of triptan-responder.