http://www.medications.com/effect/view/18833 TOOK BIAXIN XL 500 MG FOR RESPIRATORY PROBLEMS AFTER FIRST DOSE TAKEN IN THE MORNING MOUTH STARTED BURNING 12 HOURS LATER AFTER SECOND DOSE ALSO 8 HOURS LATER I WOKE UP BREATHLESS, PANICKY AND HAVING CHEST PAIN ALSO DEPRESSION AND WANTED CRY ALL DAY LONG Sun, 30 Mar 2008 00:42:27 -0400 http://www.medications.com/effect/view/18833?item=6193 I took biaxin XL 500mg four 3days,my Mouth has a funny taste it is so better that I had to get up in the middle of the night to drink eat so that the taste would go away. I has respiratory problems. I have one more dose to take. I still have the cough. http://www.medications.com/effect/view/18833?item=6193