dihydroergotamine
In a stratified approach, dihydroergotamine       or triptans may be the first-step treatment for patients who present with a       history of severe migraines that have responded poorly to previous treatments.
In a stratified approach,  @SUBJECT$        or triptans may be the first-step  @PREDICAT$  for  @OBJECT$  who present with a       history of severe migraines that have responded poorly to previous treatments.