The main difference between bactericidal drugs and bacteriostatic drugs is whether they can kill the pathogens, bactericidal drugs can kill the pathogens, while bacteriostatic drugs can not. 1. Bactericidal drugs: not only can inhibit the growth and reproduction of pathogenic microorganisms, but also can play a role in killing pathogenic microorganisms, common drugs are penicillin antibiotics, such as amoxicillin, cephalosporin antibiotics, such as cefazoxime and so on. 2. Bacteriostatic drugs: Bacteriostatic drugs mainly play the role of inhibiting the growth and reproduction of pathogenic microorganisms, so that the pathogenic microorganisms to reduce, play a therapeutic role, but it can not kill the pathogenic microorganisms, common drugs are sulfonamide antibiotics, such as sulfadiazine tablets, macrolide antibiotics, such as roxithromycin, azithromycin, and so on. If you need to use the above drugs, you should consult a clinician and use them under the guidance of a physician.