产品活性:BLI-489 hydrate 是一种青霉烯类 β-内酰胺酶抑制剂,对 A 类和 C 类以及一些 D 类 β-内酰胺酶具有活性。Piperacillin 与 BLI-489 hydrate 联用对 A 类 (包括超广谱 β-内酰胺酶)、C 类 (AmpC) 和 D 类 β-内酰胺酶表达病原体引起的小鼠感染有效。
In Vivo: On the basis of preliminary results with various ratios, a dosing ratio of 8:1 was found to be optimal for retention of enhanced efficacy. Piperacillin-BLI-489 dosed at an 8:1 ratio was efficacious against murine infections caused by class A (including extended-spectrum beta-lactamases), class C (AmpC), and class D beta-lactamase-expressing pathogens.