"i have chronic migraines and am on all types of medicine for them. sometimes every month or so i get one that&#039;ll last a week. yes a week. and i go to my primary doctor and he give me nubain. it really is a wonderful drug for migraines i have been using it for three years now. it&#039;s completely non addicting. and it takes away my severe migraine in just 15 minutes . weeks of pain gone after one shot ."