I have experienced teeth degradation, due to being prescribed Pfizer's Tetracycline when I was a child. I was born in 1964 and was given this medication for ear and respiratory infections. Since then, my self-esteem and quality-of-life has suffered due to brittle, easily chipped teeth that are discolored. I am surprised that with such negative side effects being experienced by so many, that a class-action lawsuit was never filed against this company.