Drug delivery vehicles that release one or more drugs, e.g., an opioid antagonist and/or an opioid, in response to changes in the chemistry of body fluids, specifically in response to changes in the partial pressure of CO
2
in the environment of the hydrogel are described. The drug delivery vehicles include hydrogels that swell or shrink in response to changes in the partial pressure of CO
2
in their environment, thus regulating release of an entrapped drug.
本文描述了一种药物递送载体,该载体可以在体液
化学变化,特别是在
二氧化碳分压环境变化的情况下释放一个或多个药物,例如阿片拮抗剂和/或阿片类药物。这些药物递送载体包括
水凝胶,
水凝胶可以在其环境中
二氧化碳分压的变化下膨胀或收缩,从而调节所包含药物的释放。