Pharma D 1st year Notes

Introduction Of Emulsions Emulsion is a heterogeneous system consisting of one immiscible liquid dispersed in another in the form of droplets whose diameter, in general, exceeds 0.1 microns. Such a system possesses minimal stability because the droplets quickly coalesce and the two liquids get separated. The stability of the emulsion is increased by adding another …

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Introduction A powder is a homogenous mixture of more or less finely divided particulate material in dry form. Although the use of powders as an SDF has declined yet they are the starting material in the manufacture of many dosage forms. Powders are one of the oldest dosage forms and are used both internally and …