My experience with this medicine was a nightmare, I started to taking it on a Thursday by Saturday, I had a very bad headache from coughing from Thursday night, I also have a lot of mucus, swollen tongue and saliva gland, on the 6th day, I was very tired and body was aching, I slept from 4:30pm Tuesday evening til 5AM Wednesday morning, while sitting at my desk Wednesday morning I'm still falling asleep, I can do without this medicine