<prompt> All of the following statements about treatment of migraine are true, except:Narotriptan has slower onset and longer t12 than sumatriptanRizatriptan is more efficacious than sumatriptanSumatriptan is a selective 5-HT 1B1D agonistSumatriptan is used for chronic migraine  <response>: Acute management of a migraine with 5HT1agonist Rizatriptan and eletriptan are the most efficacious of the triptans currently available Triptans are selective 5-HT1B1D receptor agonists. Sumatriptan used in acute conditions, not for chronic. Ref - Harrisons internal medicine 20e pg 3098 