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Table 2 Classification and mode of action of antibiotics

From: Detection of antibiotic resistance in probiotics of dietary supplements

Antibiotic Class Spectrum
Ampicillin (10 mcg) Semi-synthetic beta lactams Gram positive and Gram negative
Aztreonam (30 mcg) Mono-bactams Gram positive and Gram negative
Erythromycin (15 mcg) Macrolides Gram positive and Gram negative
Gentamicin (5 mcg) Aminoglycosides Gram positive and Gram negative, especially Pseudomonas
Streptomycin (10 mcg) Aminoglycosides Gram positive and Gram negative
Clindamycin (2 mcg) Lincomycins Gram positive and Gram negative, especially anaerobic Bacteroides
Vancomycin (30 mcg) Glycopeptides Gram positive and Gram negative, especially S. aureus
Cephalexin (30 mcg) Cephalosporin Gram positive
Tetracycline (30 mcg) Tetracycline Gram positive and Gram negative
Ciprofloxacin (10 mcg) Fluoroquinolones Gram positive and Gram negative, especially Bacillus anthracis