Ingredients Per 1.5 ml dose Starch: 60mg Ponceau 4R dye : 0.019 mg Brilliant blue : 0.003mg Tetrazine dye : 0.02 mg Xanthum gum : 3 mg Preservative: 0.002%(w/v)of Thiomersal (equivalent to .03 mg per 1.5 ml) Water : Up to 1.5 ml