Lactulose oral solution can be taken by infants, and there are generally no particular health risks. Lactulose itself is used to treat or assist in the treatment of constipation, as it is relatively less irritating and safer for infants to treat constipation, but not every infant needs to take Lactulose, for example, infants who do not have symptoms such as constipation do not need to take Lactulose supplements. Lactulose also needs to be taken in the prescribed dosage, and if taken in excess of the prescribed dosage, it can cause adverse reactions such as nausea, regurgitation, anorexia, diarrhea, abdominal pain, and bloating.