This is a Phase 4, randomized, open-label, multicenter, comparative study designed to further evaluate the pharmacokinetics of intravenous (i.v.) daptomycin and the safety and efficacy of daptomycin relative to comparator in the treatment of complicated skin and skin structure infections in patients with renal impairment.

Inclusion Criteria: - Moderate to end-stage renal impairment - A diagnosis of complicated skin and skin structure infection known or suspected to be due to susceptible Gram-positive bacteria based on positive Gram stain - A diagnosis of bacterial skin and skin structure infection in the presence of some complicating factor Exclusion Criteria: - Known bacteremia, osteomyelitis or endocarditis