Adult amoxicillin can usually be taken again after stopping for 6 to 8 hours, but it should be based on the condition and should require specific analysis. Amoxicillin is one of the most commonly used semi-synthetic penicillin broad-spectrum β-lactam antibiotics, with a strong bactericidal effect and the ability to penetrate cell membranes, it is one of the more widely used oral antibiotics. It is mainly used for respiratory, urinary tract and biliary tract infections caused by sensitive bacteria (e.g. pneumococcus) and the treatment of typhoid fever. The half-life of amoxicillin in the body is about 1~1.3 hours, and the complete elimination of the drug in the body requires 5 half-life, so amoxicillin can be eaten again after stopping for 6~8 hours in general to maintain the effective concentration of the drug in the body; its adverse reactions are dominated by gastrointestinal reactions such as nausea, vomiting, diarrhea, and rash; it is prohibited for those who have a history of allergy to penicillin or who are allergic to allergic body. If you need to take amoxicillin, you should take it under the dosage of the doctor’s guidance, and you can’t use it on your own to avoid delaying your condition.