A formulation and methods for inducing sustained regional local anesthesia in a patient comprising a substrate comprising a local anesthetic and an effective amount of a biocompatible, biodegradable, controlled release material prolonging the release of the local anesthetic from the substrate to obtain a reversible local anesthesia when implanted or injected in a patient, and a pharmaceutically acceptable, i.e., non-toxic, non-glucocorticoid augmenting agent effective to prolong the duration of the local anesthesia for a time period longer than that obtainable from the substrate without the augmenting agent.
本发明提供了一种诱导患者持续局部麻醉的配方和方法,包括一个基质,该基质含有
局部麻醉剂和一定量的
生物相容性、可
生物降解、控制释放材料,该材料能够延长基质中
局部麻醉剂的释放时间,从而在植入或注射患者时获得可逆的局部麻醉;以及一种药学上可接受的、即无毒、非糖皮质激素增效剂,能够延长局部麻醉的持续时间,使其比未加增效剂的基质所能获得的持续时间更长。