Zithromax Z-pac caused my DD2 at age 16 to go into kidney failure. Looking up later, that was one of the possible side effects, "acute renal failure". Thank goodness she recovered only because of a wonderful doctor and 2 weeks in the hospital, but time after time were asked if she had taken Motrin. Apparently 3/4th of the children on this floor had kidney failure due to Motrin, as per another mother.

~by the way, does everyone remember St. Joseph aspirin when you were a kid? Tylenol did a great campaign to take the market share.