Doxycycline
bronchitis
"Does nothing for me. I have been on it for 8 days-still have the same symptoms as when I went to the doctor. Wheezing-coughing, congested head, sinus drainage,, etc. I wouldn't take this again-it's like the 7 day wonder pill they all prescribe -that  doesn't work for bronchitis for me & this useless medicine isn't going to cure my problem either. Waste of money. I don't get sick often-but when I do-I need the antibiotics that will help me get well-not the dosage of this junk I was prescribed."