Can i take (levosalbutamol + ipratropium br) duolin MDI 1puff daily at night before sleeping for more than 6 months or year? Wheezing begins everyday around 9-11pm, and i cant sleep due to breathing difficulty as soon i lie down. a doctor suggested it to me in november, said it will go away as season change, but its now april-may, and i am still suffering from it.