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| Number | Title | Issue Date |
| 7666876 | Buprenorphine formulations for intranasal delivery Aqueous formulations suitable for intranasal administration comprise buprenorphine or a physiologically acceptable salt or ester thereof and (a) a pectin having a degree of esterification of less than 50%, (b) chitosan and a polyoxyethylene-polyoxypropylene copolyme... | 02/23/2010 |
