| 摘要 |
The invention relates togelling compositions for delivering pharmacologically active substances to the tissues, body fluids, and mucosal surfaces of animal patients in the form of liquids, solids and powders, comprising anionic polysaccharides and especially low methoxyl pectins as gelling agents, methods of preparation, and method of use of the in-situ gelling compositions for the delivery and sustained release of a physiologically active agent, and especially vaccine antigens, to the tissues and mucosal surfaces of an animal. |
