Study Of Sumatriptan Succinate Injection Kit In Patients With Migraine or Cluster Headache In Japan

Inclusion criteria: * Diagnosis of migraine (with or without aura) or cluster headache according to the International Classification of Headache Disorders, Version 2 (ICHD-II) * History of migraine or cluster headache persisting for at least 6 months * Migraine: One to 6 attacks of moderate or severer headaches per month during the 2 months prior to enrollment * Cluster Headache: Each attack persisting for at least 45 minutes * Written informed consent obtained from the patient. When a patient is a minor, written informed consent from his/her proxy consenter (e.g., person with parental authority) will also be required. Exclusion criteria: * History of hypersensitivity to any of the ingredients of 5-HT1B/1D receptor antagonists (e.g., triptans) or serious AE due to treatment with these drugs * History of serious adverse event attributable to treatment with Imigran® Injection 3 * History of myocardial infarction, current or previous history of ischemic heart disease or its symptoms/signs, or current history of atypical variant angina (coronary arteriospasm) * Previous history of cerebrovascular disorder or transient cerebral ischemic attack * Current or previous history of peripheral angiopathy (including Raynaud's syndrome) * Systolic blood pressure (SBP) \>160 mmHg or diastolic blood pressure (DBP) \>95 mmHg at the start of treatment period * Current familial hemiplegic migraine, basilar migraine, or sporadic hemiplegic migraine * Current abuse of ergotamine- or dihydroergotamine-containing preparations or triptans * Pregnant women, lactating mothers, women who may be pregnant, or women of childbearing potential using no appropriate contraceptive measures. * Epilepsy or organic cerebral disorder which may lead to convulsion * Previous history of hypersensitivity to sulfonamides * Known drug allergy or idiosyncrasies * Known drug dependency or alcoholism