Botox has been approved by Health Canada since 2011 for use in prevention of chronic migraine. BOTOX® can be used to prevent headaches in adults with chronic migraine who have 15 or more headache days each month with headache lasting 4 or more hours each day. Chronic migraine is defined as: Migraine with 15 or more headache days per month over the past 3 months, of which at least eight headache days meet criteria for migraine without aura.
BOTOX® blocks chemical changes on nerve endings. To treat chronic migraine, BOTOX® is injected into muscles of the forehead, the side and back of the head, and the neck and shoulders to produce a partial and temporary chemical “denervation” of the muscle. Botox is thought to reduce neurogenic inflammation which is thought to be a key component of migraine activation.
BOTOX® is injected by very fine needles into 31 to 39 sites in 7 specific head and neck muscle areas. The procedure is well tolerated by patients and takes about 15 minutes. The recommended dose of BOTOX® is 155 units in 31 sites. Depending on the medical assessment, some patients may need up to 40 additional units of BOTOX® into three specific muscle groups for a total maximum dose of 195 units.
BOTOX® is covered by most third party medication insurance plans. Please contact Dr. Rouzati’s office in for further details and complimentary consultation regarding suitability for use of botox for migraine treatment in Toronto.