0.125g is equivalent to 125mg of cephalosporin antibiotics, 0.125g drug cephalosporin drugs is a specification of the production, the purpose is to facilitate the calculation. In the clinical use of cephalosporin drugs is usually based on the weight of the patient to calculate, so 0.125g cephalosporin antibiotics is only a manufacturer’s specifications, the purpose is to facilitate doctors to do accurate calculations, according to the weight of the patient to calculate the amount of drugs used every day, given in time to achieve stable blood concentrations.