After a six-month course of injections of botulinum toxin into the muscles of the head and neck, the duration of headaches in patients decreased by 7,8-9,2 days per month. In the control group of volunteers, the rate was 6,4-6,9 day. In general, for half a year of receiving the drug study participants duration of headache was reduced to 107-134 hours in the control group -- in 70-95 hours. Based on the results of clinical trials approved by the FDA, "Botox for chronic migraine. The communication department notes that studies have not confirmed the effectiveness of drugs in migraine, lasting less than 14 days a month, as well as other types of headaches porn . The supervisory authorities of Great Britain issued a permit for a similar use of botulinum toxin in the summer of 2010. The drug is "Botox" American company Allergan is a purified toxin is the causative agent of botulism. When injected into muscles of the substance causing their paralysis. In this regard, "Botox" is currently the most widely used in cosmetic medicine as a remedy for wrinkles. According to Allergan, the 2009 sale of "Botox" amounted to 1,3 billion dollars.