Ideal sources for Wikipedia's health content are defined in the guideline Wikipedia:Identifying reliable sources (medicine) and are typically review articles. Here are links to possibly useful sources of information about Carbenicillin.

PubMed provides review articles from the past five years (limit to free review articles)
The TRIP database provides clinical publications about evidence-based medicine.
Other potential sources include: Centre for Reviews and Dissemination and CDC

Bactericidal? Carb isn't.

This article says that carbenicillin is bactericidal, but that is not true. Like ampicillin, carb slows down growth, but does not kill bacteria. I always get satellite colonies on my carb plates if I leave them too long in the incubator, which is not a problem with true bactericidal antibiotics like kanamycin. I'm removing the bactericidal note on the first sentence of the article. If you want to return it, please elaborate. Flecha2 (talk) 22:31, 23 August 2011 (UTC)[reply]