I am adding a positive response for Levaquin. I have Mycoplasma pneumoniae which won't go away. I have some immunity problems and had another rhinal plasty surgery 3 yers ago. I noticed taking Levaquin did not kill mycoplasma pneumoniae at 500mg. The doctor called in for me 750, which worked like very well. You have to take 1000mg a day to kill mycoplasma, which is in your sinuses, ears, lungs. I keep going into broncial pneumoniae which is hard to diagnose. I have special serology bloodwork done to find it. My ears kept ringing on 500mg a day, muscle pain, and other problems, vision loss. Serretia Marscenses had cultured from my nose, which is the result of Mycoplasma, which has a whole barrel of symptoms. Very diffucult to treat. To kill Mycoplasma needs to be at stronger doses. I do not deny there are allergies to antibiotics. but Mayo Clinic told me to take antibiotics for a month. which Mycoplasma tends to hang on for 3 weeks or better. I hope anybody else hasn't suffered for as long as I have. Yes, I do read the phamplet the pharmacist gives me. Just ask for the write up. I am now getting gamma-globulin to boost my immune system to fight Mycoplasma. I wish everyone well. Shirley