| 摘要 |
<p>A powder of reversed vesicles, which comprises one or more non-ionic surfactants and optionally a lipophilic stabilising factor and a bio-active agent, is provided. The product is prepared by making a dispersion of reversed vesicles in a suitable apolar vehicle, which vehicle is subsequently removed. In admixture with one or more excipients the product can be incorporated in compositions.</p> |
