Patent ID: 8501230

Claim:
A method of delivering a drug to a bodily cavity in an animal comprising: a) providing a liquid that that comprises: i) from 70 to 90 weight parts water; ii) from 10 to 25 weight parts of a copolymer having the following block structure: HO—[CH 2 —CH 2 —O] a —[CH 2 —CH(CH 3 )—O] b —[CH 2 —CH 2 —O] a —H wherein the ratio of a:b is from 1:1 to 3:1, and the molecular weight of said copolymer is from 9000 to 16000 iii) from 1.0 to 3.0 weight parts of xanthan gum; and iv) a therapeutically effective amount of said drug; b) providing a body cavity in said animal; and c) forming a barrier against pathogen entry into said cavity by applying said liquid to said exposed tissue, whereupon said liquid gels in the form of an implant and adheres to said tissue around the entire periphery of said cavity.