geri-care geri-tussin contains guaifenesin, an expectorant that helps to thin and loosen mucus in the respiratory tract, making it easier to cough up and clear. geri-care geri-tussin is intended for oral use and can be taken every 4 hours as needed. it is intended for use by adults and the elderly. it is important to follow the dosing instructions on the package carefully and to use the medication only as directed by a healthcare provider. active ingredient: guaifenesin, usp 100 mg serving size of active ingredient: adults and children 12 years and over: 2-4 teaspoonfuls every 4 hours. do not take more than 6 doses in any 24-hour period. purpose: expectorant inactive ingredients: citric acid, caramel, fd and c red 40, flavor, glycerin, menthol, sodium saccharin, sodium benzoate, sorbitol, water. store at room temperature 15 30c (59 86f) protect from freezing protect from light.