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Pharmaceutical Suspensions

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Questions and Answers

What is the purpose of adding peppermint water to the pharmaceutical suspension?

To provide flavor to the formulation (correct)

To maintain the uniformity of the external phase

To act as a preservative

To disperse the insoluble solid particles

Why is aluminum hydroxide gel added to the pharmaceutical suspension?

To act as a preservative

To disperse the insoluble solid particles

To maintain the uniformity of the external phase

To form a dispersion as it is insoluble in water (correct)

What is the purpose of the suspending agent in the pharmaceutical suspension?

To maintain the uniform dispersion of the internal phase (correct)

To disperse the insoluble solid particles

To act as a preservative

To provide flavor to the formulation

What is pharmaceutical suspension?

Pharmaceutical suspension is a coarse dispersion in which internal phase (therapeutically active ingredient) is dispersed uniformly throughout the external phase. Signup and view all the answers

What is the purpose of sodium benzoate in the pharmaceutical suspension?

Sodium benzoate acts as a preservative in the pharmaceutical suspension. Signup and view all the answers

Why is the internal phase of the pharmaceutical suspension consisting of insoluble solid particles?

The internal phase consisting of insoluble solid particles is maintained uniformly throughout the suspending vehicle with the aid of a single or combination of suspending agents. Signup and view all the answers

Study Notes

Pharmaceutical Suspension

A coarse dispersion consisting of an internal phase (therapeutically active ingredient) dispersed uniformly throughout an external phase.

Characteristics of Internal Phase

Composed of insoluble solid particles with a size range of 0.5 to 5 microns.
Maintained uniformly throughout the suspending vehicle with the aid of one or more suspending agents.

Example of Pharmaceutical Suspension

Aluminum hydroxide gel in water forms a dispersion because it is insoluble in water.
Sodium benzoate acts as a preservative in the formulation.
Peppermint water is added to make up the final volume of the preparation, providing flavor to the formulation.

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Description

Test your knowledge of pharmaceutical suspensions and their properties, including the role of suspending agents and the size of solid particles. This quiz will cover the essential aspects of pharmaceutical suspensions, including aluminum hydroxide.