The correct name for Lactase is Lactase Capsules, and no side effects or contraindications of Lactase Capsules have been identified in clinical trials. Taking Lactase Capsules is safe with no known side effects or interactions with other medications. Lactase is a digestive enzyme produced by secretion from the wall of the small intestine and an oligosaccharide produced in the body by the combination of galactose and glucose. Lactase capsules are mainly used for symptoms such as flatulence, intestinal cramps, and diarrhea after eating dairy products (such as milk) due to a deficiency of the enzyme glucocerebrosidase, as well as to prevent discomfort caused by lactose intolerance. If you need to use lactase capsule, please consult a professional doctor and follow the doctor’s instructions for standardized treatment, do not blindly use your own medicine.