Comprehensive treatment costs incurred in both treatment arms will be collected prospectively by study personnel and used to perform a formal cost-effectiveness analysis. Micro-costing algorithms will be used to derive direct treatment and hospitalization costs for the two treatment arms. After data collection is complete, along with the primary statistical analysis, a subgroup analysis will be performed to better clarify if benefit from either treatment arm is limited to high-risk patients or other specific patient sub-populations. As the proposed project is the first prospective, randomized, double-blinded investigation into two markedly different therapeutic options for treating SBP, this study will offer the unique opportunity to study them in an objective fashion.