The invention discloses an effervescent preparation of compound oral rehydration salt as well as a preparation process and application of the effervescent preparation. The effervescent preparation comprises the following components in percentage by
mass: 30-90% of a main
medicine composition of rehydration salt, probiotics and modified
montmorillonite coated particles and 10-70% of pharmaceutically acceptable effervescent auxiliary materials; and wherein the content of the probiotics is 10 < 6 >-10 < 10 > CFU / g, and the effervescent auxiliary materials comprise an acid source and an alkali source. According to the effervescent preparation of the compound oral rehydration salt, the rehydration salt, the probiotics and the modified
montmorillonite coating particles are combined for use, and after the rehydration salt and the probiotics exert corresponding curative effects after orally taking the effervescent preparation,
montmorillonite generates
mucous membrane attachment, a continuous protection effect on gastrointestinal tracts is achieved, and the side effects caused by combined administration of rehydration salt, montmorillonite and other medicinal preparations are effectively overcome. The effervescent preparation can be used for effectively treating and relieving symptoms of urgent and severe patients needing the
medicine to take effect quickly in time, is also particularly suitable for children, old people and patients who are difficult to take pills, and is convenient to carry and use.