Surfactants | classification of surfactants | Emulsifying agents | APPLICATIONS OF SURFACTANTS |

SURFACTANTS Surfactants or surface-active agents are substances, which lower the surface tension of a liquid or the interfacial tension between two liquids. Such materials have a tendency to get preferentially adsorbed at the interface between the two phases. Surfactants are used for many reasons in almost every dosage form including liquids, semisolids, and solids.   … Read more

BIPHASIC LIQUID DOSAGE FORMS | EMULSIONS | emulsifying Agents |

 BIPHASIC LIQUID DOSAGE FORMS   The biphasic systems carries with it two distinct phases. In pharmaceutical practice, these systems are exemplified by emulsions and suspensions and constitute a very important group of preparations for both internal ag well as external use. PThe present discussion is restricted to liquid dosage forms only.     EMULSIONS An emulsion may be a biphasic system during … Read more