Pharmaceutics Quiz
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Questions and Answers

What is the definition of a liquid dosage form?

  • Homogeneous liquid preparations containing one or more active ingredients dispersed in a suitable vehicle
  • Homogeneous liquid preparations containing one or more active ingredients dissolved in a suitable vehicle (correct)
  • Homogeneous liquid preparations containing inactive ingredients dispersed in a suitable vehicle
  • Homogeneous liquid preparations containing inactive ingredients dissolved in a suitable vehicle

    • What is the dispersed phase in a suspension?

  • Solid materials that are insoluble in the dispersion medium (correct)
  • Solid materials that are soluble in the dispersion medium
  • Gaseous materials that are insoluble in the dispersion medium
  • Liquid materials that are insoluble in the dispersion medium

    • What are solutions in the context of liquid dosage forms?

  • Heterogeneous liquid dosage forms prepared by dispersing the active ingredient(s) in a solvent
  • Homogeneous liquid dosage forms prepared by dissolving the active ingredient(s) in a solvent (correct)
  • Homogeneous liquid dosage forms prepared by dispersing the active ingredient(s) in a solvent
  • Heterogeneous liquid dosage forms prepared by dissolving the active ingredient(s) in a solvent

    • What defines a disperse system?

    <p>A system in which one substance is distributed throughout a second substance in discrete units</p> Signup and view all the answers

    What is the dispersed phase in an emulsion?

    <p>A liquid that is neither soluble nor miscible with the liquid of the dispersing phase</p> Signup and view all the answers

    Study Notes

    Liquid Dosage Forms

    • A liquid dosage form is a preparation in which the active pharmaceutical ingredient (API) is dissolved or dispersed in a suitable solvent or vehicle.

    Disperse Systems

    • A disperse system is a mixture in which one or more substances (dispersed phase) are distributed in a second substance (dispersion medium).
    • It is a heterogeneous system, where the dispersed phase is not uniformly distributed throughout the dispersion medium.

    Suspensions

    • In a suspension, the dispersed phase is an insoluble solid that is distributed in a liquid dispersion medium.
    • The solid particles will settle out of the solution over time, requiring the suspension to be shaken before use.

    Solutions

    • A solution is a homogeneous mixture of two or more substances, where one substance (the solute) is dissolved in another substance (the solvent).
    • In the context of liquid dosage forms, a solution is a preparation in which the API is dissolved in a suitable solvent.

    Emulsions

    • In an emulsion, the dispersed phase is a liquid that is distributed in another liquid dispersion medium.
    • The dispersed phase can be either an oil or a water, and the emulsion is stabilized by an emulsifying agent to prevent the phases from separating.

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    Description

    Test your knowledge of liquid dosage forms with this quiz on pharmaceutics. Explore key concepts such as solutions, suspensions, and emulsions, and enhance your understanding of the preparation and properties of liquid pharmaceutical formulations.

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