bone infection
"I am currently taking 330 mg capsules after one of my dental implants failed to take and the doc thinks there is an infection.  I don't know that the medicine is helping that condition, there never has been any pain, swelling or drainage.  However, as many others, the "heartburn" is like I've never experienced.  I tolerate pain pretty well, but I was on the verge of tears when I climbed into bed one night.  I honestly thought it might be an oncoming heart attack.  I found taking an ibuprofen with the capsule headed off much of the bother.  Saw nothing listed in the side effects list that came with the medicine, but is frequently mentioned here."