Consumption of Compound Chondroitin Sulfate Tablets is generally not harmful, but some patients may experience side effects such as gastrointestinal reactions, allergic reactions, and hemorrhagic risk. 1. Gastrointestinal reaction: patients taking chondroitin sulfate tablets for a long period of time may experience different degrees of gastrointestinal reactions such as nausea, vomiting, abdominal distension and diarrhea. 2. Allergic reactions: Patients taking chondroitin may experience allergic reactions such as headache, dizziness, chest tightness, panic, fever, rash, itching and skin erythema. 3. Hemorrhagic risk: some patients may have the risk of bleeding gums and bleeding in the mouth. Although Compound Chondroitin Sulfate Tablets have certain auxiliary effects such as lowering blood lipids and anti-arthritis, they also have different degrees of adverse reactions, so it is recommended to use the medicine under the guidance of a doctor, and should not be used blindly on its own in order to avoid adverse effects.