Is there really no benefit to combination therapy with colistin?

Colistin vs. the combination of colistin and rifampicin for the treatment of carbapenem-resistant Acinetobacter baumannii ventilator-associated pneumonia

(2012) H. AYDEMIR et al.   EPIDEMIOLOGY AND INFECTION

Epidemiology, Clinical Characteristics and Outcomes of Extensively Drug-Resistant Acinetobacter baumannii Infections among Solid Organ Transplant Recipients

(2012) Ryan K. Shields et al.   PLoS One

Population Pharmacokinetics of Colistin Methanesulfonate and Formed Colistin in Critically Ill Patients from a Multicenter Study Provide Dosing Suggestions for Various Categories of Patients

(2011) S. M. Garonzik et al.   ANTIMICROBIAL AGENTS AND CHEMOTHERAPY

Incidence of and Risk Factors for Colistin-Associated Nephrotoxicity in a Large Academic Health System

(2011) J. M. Pogue et al.   CLINICAL INFECTIOUS DISEASES

Colistin Dosing and Nephrotoxicity in a Large Community Teaching Hospital

(2010) C. A. DeRyke et al.   ANTIMICROBIAL AGENTS AND CHEMOTHERAPY

Nephrotoxicity Associated with Intravenous Colistin (Colistimethate Sodium) Treatment at a Tertiary Care Medical Center

(2009) Joshua D. Hartzell et al.   CLINICAL INFECTIOUS DISEASES

Colistin and rifampicin combination in the treatment of ventilator-associated pneumonia caused by carbapenem-resistant Acinetobacter baumannii

(2008) Joon Young Song et al.   INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS