Previous endocarditis blogs here with associated links.
While not really studied, there are some limited case reports or in vitro data for the possibility of:
- Daptomycin (also retrospective review in bacteremia here)
- Linezolid (and in general review of linezolid in IE here)
- Ceftobiprole (NB it lost its FDA approval in April 2010!)
Though any of the above agents should primarily be used in the context of clinical trial or 'dire cicrumstances'