Chronic migraine is defined as headaches occurring on 15 or more days each month.
Botox® (onabotulinum toxin A), was licensed specifically in Ireland for the treatment of chronic migraine in July 2010 by the Medicines and Healthcare products Regulatory Agency (MHRA).
Clinical trials leading to the approval of Onabotulinum toxin A were called PHASE III Research Evaluating Migraine Prophylaxis Therapy (PREEMPT) protocol. Botox injections have been shown to be effective in preventing the headaches, nausea and dizziness associated with chronic migraines.
Chronic migraine is defined as headaches occurring on 15 or more days each month.
Botox can help to prevent severe headaches by temporarily relaxing key muscles in the forehead and neck, blocking nervous transmission and therefore alleviating the pain and discomfort caused by migraines. In addition to its muscle relaxing properties, Botox may also be effective at blocking pain signalling to the brain, which could potentially help those experiencing different kinds of discomfort, such as muscular strains and neck problems.