Health Canada Approves BOTOX as Prophylactic Treatment for Chronic Migraine

Chronic Migraine sufferers in Canada now have an option to prevent the onset of headaches that occur over 15 days a month and leave patients debilitated. Health Canada has approved BOTOX® (onabotulinumtoxinA) manufactured by Allergan, Inc. as a prophylactic (preventive) treatment for headaches in adult patients with Chronic Migraine who suffer from headaches 15 days or more per month, lasting four hours a day or longer.1