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Cefoxitin (Mefoxin)

Cefoxitin 1gmCefoxitin 2gm

KEY POINTS

  • Cefoxitin (Mefoxin) is widely mistaken for (and referred to as) a second generation cephalosporin, but it is actually a cephamycin
  • Works by inhibiting bacterial cell wall synthesis by binding to one or more penicillin-binding-proteins, which interferes with bacterial cell wall synthesis
  • Has activity versus some Gram positive aerobes (including methicillin-sensitive Staphylococcus aureus), some Gram negative aerobes and numerous anaerobic bacteria
    • Activity versus Gram negative anaerobe Bacteroides fragilis is variable
  • Has activity versus some Mycobacterium abscessus isolates
  • May be used for a variety of indications, including gas gangrene, intra-abdominal infections, pelvic inflammatory disease, surgical prophylaxis and more
  • Doses range from 1gm every 8 hours to 2gm every 6 hours, usually not exceeding 12gm per day
    • Requires adjustment for renal function
    • Can be given intravenous or intramuscular
    • Can be given by prolonged continuous infusion (beware stability issues)
  • Beware allergy and gastrointestinal side effects

RESOURCES

  • Cefoxitin Package Insert
  • IDSA Practice Guidelines
  • Clinical Practice Guidelines For Antimicrobial Prophylaxis In Surgery
  • ATS/IDSA Non-Tuberculosis mycobacterium Treatment Guidelines

Free Antibiotic Cheat Sheet

Study Guide

  • Pharmacotherapy Study Guide
  • Acyclovir (Zovirax)
  • Albendazole (Albenza)
  • Amikacin
  • Aminoglycosides
  • Amphotericin B (Fungizone, Abelcet, Ambisome)
  • Amoxicillin (Amoxil)
  • Amoxicillin-Clavulanic Acid (Augmentin)
  • Ampicillin
  • Ampicillin-sulbactam (Unasyn)
  • Anidulafungin (Eraxis)
  • Artesunate
  • Atovaquone (Mepron)
  • Azithromycin (Zithromax, Zmax)
  • Aztreonam (Azactam, Cayston)
  • Bacitracin
  • Baloxavir marboxyl (Xofluza)
  • Bamlanivimab
  • Baricitinib (Olumiant)
  • Bebtelovimab
  • Bezlotoxumab (Zinplava)
  • Brincidofovir (Tembexa)
  • Casirivimab and Imdevimab (REGEN-COV)
  • Caspofungin (Cancidas)
  • Cefazolin (Ancef)
  • Cefepime (Maxipime)
  • Cefiderocol (Fetroja)
  • Ceftaroline (Teflaro)
  • Ceftazidime (Fortaz, Tazicef)
  • Ceftazidime-avibactam (Avycaz)
  • Ceftolozane-Tazobactam (Zerbaxa)
  • Ceftriaxone (Rocephin)
  • Cefoxitin (Mefoxin)
  • Cephalexin (Keflex)
  • Cidofovir (Vistide)
  • Ciprofloxacin (Cipro)
  • Clarithromycin (Biaxin)
  • Clindamycin (Cleocin)
  • Colistin (colistimethate)
  • Cycloserine (Seromycin)
  • Dalbavancin (Dalvance)
  • Daptomycin (Cubicin)
  • Delafloxacin (Baxdela)
  • Dicloxacillin
  • Doripenem (Doribax)
  • Doxycycline (Doryx)
  • Elbasvir/ grazoprevir (Zepatier)
  • Eravacycline (Xerava)
  • Ertapenem (Invanz)
  • Erythromycin
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  • Flucytosine (Ancobon)
  • Foscarnet (Foscavir)
  • Fosfomycin (Monurol)
  • Ganciclovir (Cytovene)
  • Gentamicin (Garamycin)
  • Glecaprevir/ Pibrentasvir (Mavyret)
  • Ibrexafungerp (Brexafemme)
  • Imipenem-cilastatin (Primaxin)
  • Imipenem-cilastatin-relebactam (Recarbrio)
  • Isavuconazole (Cresemba)
  • Itraconazole (Sporanox)
  • Ivermectin (Stromectol)
  • Ledipasvir/sofosbuvir (Harvoni)
  • Lefamulin (Xenleta)
  • Letermovir (Prevymis)
  • Levofloxacin (Levaquin)
  • Linezolid (Zyvox)
  • Maribavir (Livtencity)
  • Meropenem (Merrem)
  • Meropenem-vaborbactam (Vabomere)
  • Metronidazole (Flagyl)
  • Methenamine (Hiprex, Urex)
  • Micafungin (Mycamine)
  • Minocycline (Minocin)
  • Molnupiravir (Lagevrio)
  • Moxifloxacin (Avelox)
  • Nafcillin
  • Nitrofurantoin (Macrobid, Macrodantin)
  • Omadacycline (Nuzyra)
  • Oritavancin (Orbactiv, Kimyrsa)
  • Oseltamivir (Tamiflu)
  • Oteseconazole (Vivjoa)
  • Oxacillin
  • Paxlovid (nirmatrelvir/ ritonavir)
  • Penicillin
  • Penicillin Skin Test
  • Phenazopyridine (AZO)
  • Piperacillin-tazobactam (Zosyn)
  • Plazomicin (Zemdri)
  • Polymyxin B
  • Posaconazole (Noxafil)
  • Quinupristin-dalfopristin (Synercid)
  • Remdesivir (Veklury)
  • Ribavirin
  • Rifabutin (Mycobutin)
  • Rifampin (Rifadin)
  • Secnidazole (Solosec)
  • Sofosbuvir/ velpatasvir/ voxilaprevir (Vosevi)
  • Sotrovimab (Xevudy)
  • Sulfadiazine
  • Sulfamethoxazole-Trimethoprim (Bactrim)
  • Tecovirimat (TPOXX)
  • Tedizolid (Sivextro)
  • Telavancin (Vibativ)
  • Tigecycline (Tygacil)
  • Tobramycin
  • Tocilizumab (Actemra)
  • Valacyclovir (Valtrex)
  • Valganciclovir (Valcyte)
  • Vancomycin
  • Voriconazole (VFend)
  • Zidovudine (Retrovir)
  • Zoster vaccine recombinant, adjuvanted (Shingrix)

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