A database of pharmacy practice guidelines

AntibioticDex

For educational use only. Susceptibility patterns are for general guidance based on common patterns and current literature. Always confirm with local antibiogram and culture sensitivities. Always check organism-specific notes and local guidelines before prescribing.

Spectrum of Activity — Organism × Antibiotic

74 organisms × 74 antibiotics. Click any cell or drug name for full pairing context drawn from all three reference tables. Click a class header to filter to that class.

P
Preferred
A
Alternative
L
Limited utility
·
Not recommended

Last updated: 5/2026

Disclaimer: This reference is a qualitative synthesis intended for educational use. Penetration ratings vary with dose, inflammation, renal/hepatic function, and individual pharmacokinetics.

References: Sanford Guide to Antimicrobial Therapy; Mandell, Douglas, and Bennett's Principles and Practice of Infectious Diseases; Bugs & Drugs; Lexicomp. For clinical use, verify against primary pharmacokinetic literature and consult ID pharmacy.

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