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Antibiotic classifications (Protein synthesis inhibitors (50s (Macrolides,…
Antibiotic classifications
Protein synthesis inhibitors
50s
Macrolides
Erythromycin
Gram +ve,
bacteriostatic
Lincosamides
Clindamycin
penetrates bone
30s
Tetracycline
Bacteriostatic
-ve
avoid dairy, <16s
Doxycyline in aggressive perio
Aminoglycosides
Gentamycin
Bactericidal
Avoid in children
Cell Wall inhibitors
B lactams
Penicillins
Narrow range
Benzyl peniciliin
Paraentral, as acid sensitive
Phenoxymethylpenicillin
Acid stable, oral
Broad range
Ampicillin
Amoxicillin
+ve, -ve, cocci, bacilli
Extended range
Co-amoxiclav
Amoxicillin and Clavulanic acid
Inhibits B lactamase
+ve -ve cocci, bacillus, staph
Nucleic acid synthesis inhibitors
Metronidazole
anaerobic +ve
Alcohol - disulfram
pro-drug - activated by GIT bacteria
Bacteriocidal