What is a colloidal suspension also known as?

A colloidal suspension is often referred to as a gel. This is because gels are a type of colloidal system where the particles are dispersed in a liquid, forming a semi-solid structure that retains moisture and has a gel-like consistency. In gels, the dispersed phase is typically solid particles that create a network throughout the liquid phase, resulting in a material that has properties of both solids and liquids.

Understanding the nature of colloidal suspensions is important in pharmacy and pharmacology, as gels are frequently used in various applications, including topical medications and formulations for controlled drug release. This distinction helps to identify the right formulation for specific therapeutic purposes, ensuring the efficacy and stability of the medications used.

The other options represent different kinds of formulations. An aerosol involves small particles suspended in a gas, an ampule is a sealed vial used to contain medications, and a cream is an emulsion of oil and water rather than a gel structure. Therefore, recognizing the characteristics of a gel allows one to correctly identify it as a type of colloidal suspension.