For enteric capsules, the main effect is that it adds a special shell to the capsule, which allows the dissolution of the drug to take place in the intestine, avoiding the stimulation of the stomach. For example, Azithromycin, which has obvious gastrointestinal reactions, is made into enteric capsules, so that it can be dissolved and absorbed in the small intestine, while in the stomach, in the acidic environment, the drug will not be melted, so it will not cause obvious stomach damage, and the reaction to the gastrointestinal tract will be reduced. Therefore, enteric capsules are now widely used in clinical practice, and the common ones are enteric capsules of pantoprazole, enteric capsules of azithromycin, etc.