The use of antiseptics internally is limited by the resistance of the organism itself, as already mentioned (p. 102). In the stomach antiseptics are used for the purpose of preventing decomposition, and by thus lessening the production of irritating products they diminish irritation of the stomach and arrest vomiting. Those which are chiefly employed for this purpose are creasote, carbolic acid, sulpho-carbolates, salicylic and sulphurous acids. In the intestine antiseptics are useful in arresting putrefaction, and thus preventing the harm caused locally to the intestine by the products of decomposition as well as the injury due to their subsequent reabsorption. They therefore tend to check diarrhoea and dysentery. It is probably to its antiseptic action that corrosive sublimate owes its curative power in cases of infantile dysentery, and it is not improbable that the beneficial action of calomel is due to a similar action, for it has been found by Wassilieff greatly to retard the decomposition due to low organisms.