People who are allergic to penicillin are not allowed to take amoxicillin. Amoxicillin, also known as hydroxybenzyl penicillin, is an antibiotic of the penicillin class. Penicillin is a natural antibiotic that is extracted from the culture of Penicillium. Because penicillin cannot tolerate stomach acid, cannot be taken orally, and cannot tolerate penicillinase produced by bacteria, the scope of bactericidal is also narrow, and the application is subject to many restrictions. In order to overcome the shortcomings of natural penicillin, people have processed and modified on the basis of natural penicillin, and got many penicillins with wide antibacterial spectrum, acid and enzyme resistance, also called artificial semi-synthetic penicillin antibiotics. Amoxicillin belongs to a kind of penicillin that is acid-resistant, can be taken orally, and has a wide antibacterial spectrum. People who are allergic to natural penicillin will also be allergic to other penicillin drugs, so if you are allergic to penicillin, you should not take amoxicillin either.