A database of pharmacy practice guidelines

AntibioticDex

Reference use only — Susceptibility patterns are 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 antibiotic coverage table is a simplified qualitative reference intended for educational and quick-reference use. Coverage patterns, resistance rates, formulary availability, and preferred treatment strategies vary by institution, patient population, and local antibiogram. Always verify recommendations against current clinical guidelines, institutional protocols, microbiology data, and infectious diseases expertise when appropriate. This table is a reference aid and is not a substitute for clinical judgment.

References: The Sanford Guide to Antimicrobial Therapy (current edition), Johns Hopkins ABX Guide (current edition), Infectious Diseases Society of America (IDSA) clinical practice guidelines, Lexicomp Online antimicrobial monographs, and institutional antimicrobial stewardship resources.

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PharmGuides is an independent, pharmacist-curated reference intended for educational use only. Content is derived from publicly available clinical guidelines and does not replace professional judgment, institutional protocols, or primary source verification. External links are provided for reference; PharmGuides does not control or guarantee their content.