Fig. 1.

Proposed Step-by-step Algorithm for Diagnosing GI Symptoms or Comorbidities and Developing a Treatment Plan for Patients With Episodic Migraine [5, 21•]. Note: This figure was created based on clinical perspective of the authors as well as published guidelines from the American Headache Society Consensus Statement. CVS, cyclic vomiting syndrome; DGBI, disorder of gutbrain interaction; GI, gastrointestinal; IBS, irritable bowel syndrome; ICHD-3, International Classification of Headache Disorders version 3; NSAID, nonsteroidal anti-inflammatory drug; ROA, route of administration; SC, subcutaneous; TCA, tricyclic antidepressant