Pharmaceutical Formulations: Emulsion Preparation

Play an AI-generated podcast conversation about this lesson

What is the primary requirement for the formation of an emulsion?

Ultrasonic mixing

Complete miscibility of two liquids

Presence of an emulsifying agent (correct)

High temperature and pressure

What is the primary role of an emulsifying agent in emulsion formulation?

To stabilize the dispersed phase (correct)

To increase the viscosity of the emulsion

To change the pH of the emulsion

To initiate chemical reactions

What affects the stability of an emulsion?

Particle size of the dispersed phase

Viscosity of the continuous phase

Concentration of the emulsifying agent

All of the above (correct)

What is acacia gum commonly used as in pharmaceutical formulations?

Emulsifying agent Signup and view all the answers

What is a common method used in emulsion preparation?

Homogenization Signup and view all the answers

Why is it important to store emulsions in appropriate containers?

To maintain formulation integrity Signup and view all the answers

What is the primary difference between the dry gum method and the English method of emulsion formation?

The order and technique of mixing are different Signup and view all the answers

Which method of emulsion formation is commonly used for preparing emulsions of volatile oils or oligeneous substances of very low viscosities?

Bottle or Forbes bottle method Signup and view all the answers

What is the purpose of adding flavor oil in the dry gum method of emulsion formation?

To mask the unpleasant taste of the cod liver oil Signup and view all the answers

What is the characteristic of the primary emulsion formed in the dry gum method?

Thick, white, and homogeneous Signup and view all the answers

Why is the English method considered more difficult to perform successfully?

Because it is more sensitive to the viscosity of the oil Signup and view all the answers

What is the role of acacia in the formation of emulsions?

It acts as an emulsifier to stabilize the emulsion Signup and view all the answers

What is the process of aggregation of small globules or droplets into larger globules or droplets, resulting in complete separation of two phases?

Coalescence Signup and view all the answers

What is the primary emulsion, in terms of its composition and properties?

A thick and stable emulsion with a prescribed ratio of ingredients Signup and view all the answers

What is the purpose of an emulsifying agent in primary emulsion preparation?

To stabilize the emulsion and prevent separation Signup and view all the answers

What is the ratio of oil to water to gum in a primary emulsion for cod liver oil?

4:2:1 Signup and view all the answers

What is the result of flocculation in an emulsion?

The clustering of individual dispersed droplets together Signup and view all the answers

What is the process of preparing a primary emulsion using a mortar and pestle?

Extemporaneous preparation Signup and view all the answers

Pharmaceutical Formulations: Emulsion Preparation

Choose a study mode

Podcast

Questions and Answers