Diarrhea formula, commonly known as anti-diarrhea formula, is a special type of infant formula for a small number of infants with congenital allergies to milk, protein or lactose that cause diarrhea due to intolerance of lactose. Diarrhea formula includes some lactose-free formula, partially hydrolyzed protein formula, and amino acid formula. The main ones are Nestlé’s Amiya Su, Mead Johnson’s Aminjen, and Newcomer from Newdicia. Diarrhea milk powder is mainly a special formula that replaces the lactose in ordinary milk powder with maltodextrin or glucose polymer, and breaks down the allergenic macromolecular milk protein into short peptides and amino acids that are less likely to cause allergies, and also adds nucleotides, a component of human milk, which is a special formula that can be used safely during the infant diarrhea period. It is commonly used for children between 0 and 12 years old and babies with allergies. During diarrhea you can directly stop using the original formula and replace it with diarrhea formula. If the symptoms improve later, then you need to add formula in a gradual way to change milk. If your baby’s diarrhea persistently worsens and is still not effectively controlled by taking diarrhea formula, you need to consider further medical consultation to determine if something else is going on. It is also important to follow medical advice when choosing a formula for diarrhea.