The side effects of amoxicillin capsules include gastrointestinal reactions such as nausea, vomiting, diarrhea and pseudomembranous enteritis; allergic reactions such as rash, drug fever and asthma; hematologic effects such as anemia, thrombocytopenia, eosinophilia, and mild increase in serum aminotransferase; secondary infections caused by Candida or resistant bacteria; occasional central nervous system symptoms such as euphoria, anxiety, sleep, dizziness and abnormal behavior. The following are some of the most common symptoms of amoxicillin capsules Because amoxicillin capsules are oral broad-spectrum penicillin antibiotics, they are contraindicated in patients with a positive penicillin skin test. Patients with infectious mononucleosis are prone to skin rash and should avoid its use. Patients with longer course of treatment should have their liver and kidney function and blood routine checked. Use with caution in patients with a history of allergic diseases such as asthma and cushings fever. Dose adjustment may be required in the elderly and in cases of severe renal impairment. There are reports in the literature of rashes that are not treated promptly leading to maculopapular skin loosening drug rash and other reports of delayed allergic reactions, so it is important to pay attention to adverse drug reactions during drug administration, intervene promptly and seek medical attention at all times.