How can AZO STANDARD® and AZO STANDARD® Maximum Strength stain my contact lenses?
This warning is for the handling of the tablets and then handling contact lenses. If the tablets are handled long enough to dissolve the thin coating on the tablets, then the dye can transfer from your fingers to contact lenses. This situation is true with any objects you may come in contact with after handling the AZO STANDARD® and AZO STANDARD® Maximum Strength tablets.