A pharmaceutical composition is provided for topical administration of a local anesthetic agent. The composition comprises (a) a therapeutically effective amount of a local anesthetic agent and (b) a pharmaceutically acceptable, nonliposomal carrier comprised of a monohydric alcohol, a penetration enhancer, and polymer, which may be a hydrophilic polymer, a hydrophobic polymer or a combination thereof. The composition can be in the form of a gel, or it may form a film following application to a patient's body surface and evaporation of the monohydric alcohol. The composition provides rapid onset of local anesthesia as well as penetration of the active agent into the skin. Methods and drug delivery systems for administration of local anesthetic agents are also provided.
提供了一种局部给药
局部麻醉剂的药物组合物。该组合物包括(a)治疗有效量的
局部麻醉剂和(b)药学上可接受的非脂质体载体,该载体由一元醇、渗透
促进剂和聚合物组成,聚合物可以是亲
水性聚合物、疏
水性聚合物或它们的组合。该组合物可以是凝胶状,也可以在涂抹到患者体表和一元醇蒸发后形成薄膜。这种组合物能迅速产生局部麻醉,并使活性剂渗透到皮肤中。此外,还提供了
局部麻醉剂的给药方法和给药系统。