Chongqing Liyang Pharmaceutical Development Co., Ltd.
What are the common types of liquid formulations?
Release Time:
2025-05-30 00:00
Source:
Liquid formulations are an important form of pharmaceutical preparations, and they can be classified into various types based on their dispersion systems and preparation methods. The following are several common types of liquid formulations:
1. Solution-type liquid preparations: This is a common type of liquid preparation, referring to a homogeneous system in which the drug is uniformly dispersed in the solvent in molecular or ionic form.
2. Colloidal Liquid Preparations: When the drug exists in the form of a macromolecular compound, it can form a colloidal solution. These preparations exhibit a certain degree of viscosity.
3. Emulsion-type Liquid Preparations: A stable dispersion system formed by mechanically mixing two immiscible liquids (e.g., through stirring) and adding an appropriate amount of emulsifier is referred to as an emulsion.
4. Suspended Liquid Preparations: Refers to a heterogeneous liquid dispersion system in which poorly soluble solid drugs are suspended as fine particles within a dispersing medium.
5. Polymer Solutions: Homogeneous, transparent or translucent liquid formulations formed by dissolving polymeric substances in a solvent. These formulations exhibit high viscosity and possess certain biological activities.
6. Suspended and Emulsion-Mixed Liquid Preparations: For certain drugs that are neither readily soluble in water nor capable of forming stable emulsions, they can be formulated into a composite system that simultaneously incorporates both suspended solid particles and dispersed liquid droplets.
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What are the common types of liquid formulations?
This is a common type of liquid formulation, referring to a homogeneous system in which the drug is uniformly dispersed in the solvent in molecular or ionic form.
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