Klasifikasyon: dwòg anti-bakteri yo divize an de kategori: antibyotik ak sentetik dwòg anti-bakteri. Sa yo rele antibyotik yo se metabolit ki pwodui pa mikwo-òganis,  ki ka anpeche kwasans lan oswa touye sèten lòt mikwo-òganis.  Sa yo rele dwòg anti-bakteri sentetik yo se sibstans anti-bakteri ki te pwodwi pa moun atravè sentèz chimik, pa pwodui pa metabolis mikwòb.

Antibyotik: Antibyotik yo jeneralman divize an uit kategori: 1. Penisilin: penisilin, anpisilin, amoksisilin, elatriye; 2. Cephalosporins (pioneermycins): cephalexin, cefadroxil, ceftiofur, cephalosporins, elatriye; 3. Aminoglycosides: streptomycin, gentamicin, amikacin, neomicin, apramycin, elatriye; 4. Makrolid: erythromycin, roxithromycin, tilosin, elatriye; 5. Tetracyclines: oxytetracycline, doxycycline, aureomycin, tetrasiklin, elatriye; 6. Chloramphenicol: florfenicol, thiamphenicol, elatriye; 7. Lincomycins: lincomycin, clindamycin, elatriye; 8. Lòt kategori: silfat colistin, elatriye.