The present invention relates to the use of adjuvants in topical ophthalmic compositions. In particular, this invention relates to the use of carrageenans and furcellarans in the compositions and a method for the controlled administration of a pharmaceutically active agent to patients wherein the topical compositions are administered as partially gelled liquids which thicken to form gels upon instillation into the eye. The transition from liquid to gel is primarily due to the change in ionic strength, especially an increase in the sodium chloride concentration.
本发明涉及眼科外用组合物中佐剂的使用。 特别是,本发明涉及
卡拉胶和
呋喃卡拉胶在组合物中的使用,以及向患者控制施用药物活性剂的方法,其中外用组合物以部分胶凝液体的形式施用,灌入眼内后会变稠形成凝胶。 从液体到凝胶的转变主要是由于离子强度的变化,特别是
氯化钠浓度的增加。