Fosfomycin Disease Interactions
There are 3 disease interactions with fosfomycin.
Antibiotics (applies to fosfomycin) colitis
Major Potential Hazard, Moderate plausibility. Applicable conditions: Colitis/Enteritis (Noninfectious)
Clostridioides difficile-associated diarrhea (CDAD), formerly pseudomembranous colitis, has been reported with almost all antibacterial drugs and may range from mild diarrhea to fatal colitis. The most common culprits include clindamycin and lincomycin. Antibacterial therapy alters the normal flora of the colon, leading to overgrowth of C difficile, whose toxins A and B contribute to CDAD development. Morbidity and mortality are increased with hypertoxin-producing strains of C difficile; these infections can be resistant to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea after antibacterial use. Since CDAD has been reported to occur more than 2 months after antibacterial use, careful medical history is necessary. Therapy with broad-spectrum antibacterials and other agents with significant antibacterial activity should be administered cautiously in patients with history of gastrointestinal disease, particularly colitis; pseudomembranous colitis (generally characterized by severe, persistent diarrhea and severe abdominal cramps, and sometimes associated with the passage of blood and mucus), if it occurs, may be more severe in these patients and may be associated with flares in underlying disease activity. Antibacterial drugs not directed against C difficile may need to be stopped if CDAD is suspected or confirmed. Appropriate fluid and electrolyte management, protein supplementation, antibacterial treatment of C difficile, and surgical evaluation should be started as clinically indicated.
Fosfomycin (applies to fosfomycin) hemodialysis
Moderate Potential Hazard, High plausibility.
Fosfomycin is removed by hemodialysis and should be administered after dialysis sessions.
Fosfomycin (applies to fosfomycin) renal dysfunction
Minor Potential Hazard, Moderate plausibility.
Fosfomycin is eliminated unchanged by the kidney (38%) and in the feces (18%). The excretion of fosfomycin is significantly decreased and the half-life prolonged in patients with compromised renal function. Side effects (e.g., diarrhea, headache, nausea, vaginitis) may be prolonged in patients with renal impairment.
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Fosfomycin drug interactions
There are 26 drug interactions with fosfomycin.
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Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
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Further information
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