The common side effects of Erythromycin Cyclic Erythromycin Dry Mix are digestive system adverse reactions, such as regurgitation, nausea, vomiting, bloating, abdominal pain, diarrhea or constipation. There is also some damage to liver and kidney function, which can elevate glutathione and glutamic oxalacetic transaminase and lead to an increase in creatinine. It can also cause adverse reactions such as premature beats, insomnia, and mental overstimulation. A small percentage of people may also experience psychiatric adverse reactions such as drowsiness and hallucinations. Erythromycin dry suspension belongs to the macrolide class of antibiotics, the side effects of this class of drugs have gastrointestinal reactions, it is generally recommended to take it after meals to properly reduce the side effects. For diseases caused by mycoplasma and chlamydia infections, macrolide antibiotics are used as the first choice. Once the side effects and allergic reactions occur it is recommended to stop the drug immediately and the use of antibiotics must be used under the guidance of a professional doctor.