Critical Seriousness - A Rupture in the Wall of the Stomach or Intestine - Gastrointestinal Perforation is a Life Threatening Side Effect of Migraine Critical Seriousness - Anemia is a Life Threatening Side Effect of Migraine Critical Seriousness - Bleeding of the Stomach or Intestines - Gastrointestinal Hemorrhage is a Life Threatening Side Effect of Migraine Critical Seriousness - Blood coming from Anus - Rectal Bleeding is a Life Threatening Side Effect of Migraine Critical Seriousness - Bronchospasm - Bronchospastic Pulmonary Disease is a Life Threatening Side Effect of Migraine Critical Seriousness - Decreased Blood Platelets - Thrombocytopenic Disorder is a Life Threatening Side Effect of Migraine Critical Seriousness - Decreased Neutrophils a Type of White Blood Cell - Neutropenic Disorder is a Life Threatening Side Effect of Migraine Critical Seriousness - Decreased White Blood Cells - Leukopenia is a Life Threatening Side Effect of Migraine Critical Seriousness - Deficiency of Granulocytes a Type of White Blood Cell - Agranulocytosis is a Life Threatening Side Effect of Migraine Critical Seriousness - Drowsiness - Drowsy is a Life Threatening Side Effect of Migraine Critical Seriousness - Extra Heartbeat - Extrasystoles is a Life Threatening Side Effect of Migraine Critical Seriousness - Giant Hives - Angioedema is a Life Threatening Side Effect of Migraine Critical Seriousness - Hemolytic Anemia is a Life Threatening Side Effect of Migraine Critical Seriousness - Hemorrhage Within the Skull - Intracranial Bleeding is a Life Threatening Side Effect of Migraine Critical Seriousness - Hepatitis caused by Drugs - Drug-Induced Hepatitis is a Life Threatening Side Effect of Migraine Critical Seriousness - Hepatitis is a Life Threatening Side Effect of Migraine Critical Seriousness - Hives - Urticaria is a Life Threatening Side Effect of Migraine Critical Seriousness - Inflammation of Skin caused by an Allergy - Allergic Dermatitis is a Life Threatening Side Effect of Migraine Critical Seriousness - Interstitial Nephritis is a Life Threatening Side Effect of Migraine Critical Seriousness - Itching - Pruritus of Skin is a Life Threatening Side Effect of Migraine Critical Seriousness - Large Purple or Brown Skin Blotches - Purpura is a Life Threatening Side Effect of Migraine Critical Seriousness - Life Threatening Allergic Reaction - Anaphylaxis is a Life Threatening Side Effect of Migraine Critical Seriousness - Rash - Skin Rash is a Life Threatening Side Effect of Migraine Critical Seriousness - Reaction due to an Allergy - Allergic Reactions is a Life Threatening Side Effect of Migraine Critical Seriousness - Redness of Skin - Erythema is a Life Threatening Side Effect of Migraine Critical Seriousness - Ringing in the Ears - Tinnitus is a Life Threatening Side Effect of Migraine Critical Seriousness - Seizures - Seizure Disorder is a Life Threatening Side Effect of Migraine Critical Seriousness - Stomach or Intestinal Ulcer - Gastrointestinal Ulcer is a Life Threatening Side Effect of Migraine Critical Seriousness - Trouble Breathing - Dyspnea is a Life Threatening Side Effect of Migraine Critical Seriousness - Wheezing is a Life Threatening Side Effect of Migraine |