Bactericidal versus bacteriostatic antibacterials: clinical significance, differences and synergistic potential in clinical practice
2024

Bactericidal vs Bacteriostatic Antibiotics: What You Need to Know

publication Evidence: moderate

Author Information

Author(s): Ishak Angela, Mazonakis Nikolaos, Spernovasilis Nikolaos, Akinosoglou Karolina, Tsioutis Constantinos

Hypothesis

Are bactericidal antibiotics always better than bacteriostatic ones in treating infections?

Conclusion

Bacteriostatic antibiotics can be just as effective as bactericidal ones in treating various infections, including severe cases.

Supporting Evidence

  • Some bacteriostatic agents are clinically non-inferior to bactericidal agents in treating infections.
  • Not all combinations of bacteriostatic and bactericidal agents are antagonistic; some can be synergistic.
  • Current dogma against combining bactericidal and bacteriostatic agents may need reevaluation based on emerging evidence.

Takeaway

Some antibiotics stop bacteria from growing, while others kill them. This study shows that both types can work well in treating infections.

Methodology

This review assessed the differences in antibacterial activity of bactericidal and bacteriostatic antibacterials based on in vitro and in vivo studies.

Potential Biases

The review may be influenced by the variability in study designs and the quality of the included studies.

Limitations

Most evidence is from observational studies, and there is a need for randomized controlled trials to assess effectiveness and combinations.

Digital Object Identifier (DOI)

10.1093/jac/dkae380

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