American journal of health-system pharmacy : AJHP : official journal of the American Society of Health-System Pharmacists · 2025
Toxin inhibition: Examining tetracyclines, clindamycin, and linezolid.
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Green Sarah B, Albrecht Benjamin, Chapin Ryan, Walters Jillian
Аннотация
PURPOSE: The purpose of this review is to discuss the role of toxin inhibition in select infections and to provide recommendations for appropriate antimicrobial selection when toxin inhibition is indicated.
SUMMARY: For select organisms, specifically Clostridioides difficile, Staphylococcus aureus, and Streptococcus pyogenes, toxin production plays an integral role in overall disease pathogenesis and progression. Some expert recommendations include utilization of an antimicrobial with toxin inhibition properties as primary or adjunctive therapy for certain infections due to these organisms, but evolving data have made the choice of antitoxin agent less clear. Clindamycin has been the long-standing standard of care agent for toxin inhibition in necrotizing S. aureus and S. pyogenes infections, but linezolid shows promise as an alternative either in the setting of drug shortages or simply when clindamycin is not optimal, while tetracyclines require further study for this indication. The role for adjunctive toxin inhibition in C. difficile infection (CDI) is less defined, as current first-line therapies already have antitoxin properties.
CONCLUSION: Toxin inhibition plays a key role in successful management of patients with infections due to toxin-producing organisms. Adjunctive therapy with a tetracycline could be considered in severe, fulminant CDI, but the associated benefit is variable. The benefit of antitoxin treatment for necrotizing S. aureus and S. pyogenes has been more consistently documented. Recent studies support linezolid as an alternative to clindamycin as an adjunctive S. aureus treatment or as monotherapy when appropriate.
SUMMARY: For select organisms, specifically Clostridioides difficile, Staphylococcus aureus, and Streptococcus pyogenes, toxin production plays an integral role in overall disease pathogenesis and progression. Some expert recommendations include utilization of an antimicrobial with toxin inhibition properties as primary or adjunctive therapy for certain infections due to these organisms, but evolving data have made the choice of antitoxin agent less clear. Clindamycin has been the long-standing standard of care agent for toxin inhibition in necrotizing S. aureus and S. pyogenes infections, but linezolid shows promise as an alternative either in the setting of drug shortages or simply when clindamycin is not optimal, while tetracyclines require further study for this indication. The role for adjunctive toxin inhibition in C. difficile infection (CDI) is less defined, as current first-line therapies already have antitoxin properties.
CONCLUSION: Toxin inhibition plays a key role in successful management of patients with infections due to toxin-producing organisms. Adjunctive therapy with a tetracycline could be considered in severe, fulminant CDI, but the associated benefit is variable. The benefit of antitoxin treatment for necrotizing S. aureus and S. pyogenes has been more consistently documented. Recent studies support linezolid as an alternative to clindamycin as an adjunctive S. aureus treatment or as monotherapy when appropriate.