Aminoglycan chondroitin calcium tablets are mainly over-the-counter drugs with glucosamine, chondroitin sulfate, black ant and plant calcium as the main ingredients, which have the functions of repairing joint cartilage, improving osteoarthritis, lubricating joints and increasing bone density. The main side effect is the stimulation of the gastrointestinal tract after long-term use of aminosugar and calcium tablets, many elderly patients will experience abdominal distension and pain in the upper abdomen, and in serious cases, gastrointestinal ulcers and bleeding and other clinical manifestations, so aminosugar chondroitin calcium tablets should be taken under the guidance of a doctor. If gastrointestinal discomfort occurs, patients should go to the hospital in a timely manner and change the medication if necessary.