Collyrium soothing eye lotion is an isotonic neutral borate solution with antipyrine 0.4%, boric acid, borax and 0.002% sodium ethyl-mercurithiosalicylate (thimerosal). Collyrium, Wyeth, sooths, cleanses and relieves tired or irritated eyes resulting from long use as in reading or close work or due to exposure to the sun, strong light, irritation from dust, wind, etc.