Clarithromycin tablets side effects are too large, the patient can produce gastrointestinal symptoms, the need for timely gastric lavage treatment and appropriate supportive therapy, specific should follow the doctor’s instructions. Clarithromycin tablets are macrolide antibiotic drugs used for upper and lower respiratory tract infections, skin and soft tissue infections caused by pathogenic bacteria sensitive to them. Excessive intake of Clarithromycin can produce gastrointestinal symptoms such as nausea, vomiting, abdominal pain, diarrhea, dyspepsia, and other adverse reactions, which can be promptly eliminated by gastric lavage of unabsorbed drug and supportive therapy. For example, for severe vomiting, diarrhea caused by electrolyte disorders, need to give montelukast and other antidiarrheal drugs as appropriate, and appropriate supplementation of fluids; abdominal pain is serious, can be given atropine and other antispasmodic painkillers, and so on. In addition, patients need to pay attention to regular and quantitative take during the treatment of medication, in order to reduce the side effects of drugs. During the medication should also avoid alcohol, avoid spicy, stimulating food, so as not to aggravate the gastrointestinal tract stimulation, increase the damage of the drug on the liver, is not conducive to the health of the body. Patients are advised to take Clarithromycin tablets as prescribed by the doctor, and not to increase the dosage of the drug without authorization to avoid serious side effects.