POORLY SOLUBLE SUBSTANCE-SURFACTANT COMPLEX PRODUCT, AND PROCESS FOR PRODUCTION THEREOF

摘要

The object is to produce an S/W-, S/O- or S/O/W-type preparation of a poorly soluble substance including a poorly water-soluble substance classified into Class-2 or Class-4 in accordance with BCS, whereby the solubility and absorbability of the poorly soluble substance can be improved. Thus, disclosed is an S/W-, S/O- or S/O/W-type preparation of a poorly soluble substance. The preparation can be produced by a process comprising injecting air or a non-flammable gas into a gas phase zone positioned above the liquid level in a dispersion, dissolution or emulsification vessel and producing a poorly soluble substance-surfactant complex preparation under the conditions having a pressure of 1 to 10 atm pressure inclusive.