Cefadroxil Methotrexate Capsules is a compound preparation, belongs to the anti-inflammatory drug, which contains two ingredients of cefadroxil and methotrexate, cefadroxil belongs to the first generation of cephalosporins, mainly by inhibiting the synthesis of bacterial cell wall, so as to play antibacterial activity, this drug mainly has better antibacterial activity against positive bacteria, such as Streptococcus pneumoniae, Streptococcus haemolyticus and Staphylococcus spp. Anti-blood activity, in addition to some of the Escherichia coli, Salmonella spp. also have a certain antibacterial effect. Methotrexate is a bacteriostatic agent, and its main mechanism of action is to interfere with the metabolism of bacteria and folic acid, thus playing a synergistic antibacterial effect with cefadroxil. In clinical practice, this compound preparation is mainly used for penicillin-resistant staphylococci, streptococci, pneumococci and Escherichia coli infections. When using it, it should be noted that because cefadroxil belongs to the cephalosporin class of antibiotics, it has cross-allergic reactions with penicillin. In conclusion, Cefadroxil Capsules are anti-inflammatory drugs that can be used for infectious diseases caused by sensitive bacteria.