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Combination of daptomycin plus ceftriaxone is more active than vancomycin plus ceftriaxone in experimental meningitis after addition of dexamethasone.

Author(s): Egermann U, Stanga Z, Ramin A, Acosta F, Stucki A, Gerber P, Cottagnoud M, Cottagnoud P

Affiliation(s): Department of Internal Medicine, Inselspital, Bern, Switzerland.

Publication date & source: 2009-07, Antimicrob Agents Chemother., 53(7):3030-3. Epub 2009 Apr 13.

Publication type: Research Support, Non-U.S. Gov't

We examined the cerebrospinal fluid penetration of daptomycin after the addition of dexamethasone and its bactericidal efficacy with and without ceftriaxone in an experimental rabbit model of pneumococcal meningitis. The combination of daptomycin with ceftriaxone was the most efficacious regimen for pneumococcal meningitis. The previous addition of dexamethasone affected the antibacterial activity of daptomycin only marginally, either as monotherapy or combined with ceftriaxone, although the penetration of daptomycin into inflamed meninges was significantly reduced from 6 to 2%. Daptomycin with ceftriaxone might be a potential candidate for the empirical therapy of bacterial meningitis, although the activity of this regimen against Listeria monocytogenes remains to be demonstrated.

Page last updated: 2009-10-20

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