Pharmaceutical Suspensions Lecture
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Questions and Answers

What is a pharmaceutical suspension?

  • A fine dispersion with internal phase concentrated at the bottom
  • A mixture of solid particles and liquid without uniform dispersion
  • A coarse dispersion with internal phase dispersed uniformly throughout the external phase (correct)
  • A solution with completely dissolved solid particles
  • Which type of suspension may have an organic or oily liquid as the external phase?

  • Externally applied suspension
  • Oral suspension
  • Non-oral suspension (correct)
  • Parenteral suspension
  • What is the proportion of solid particles in a concentrated suspension?

  • Less than 1% w/v solid
  • 20-30% w/v solid
  • 2-10% w/v solid
  • 50% w/v solid (correct)
  • Which type of suspension is used for insoluble or poorly soluble drugs required to be given orally?

    <p>Oral suspension</p> Signup and view all the answers

    What advantage does a pharmaceutical suspension offer for certain drugs in aqueous solution?

    <p>Reduce the contact time between solid drug particles and dispersion media to increase stability</p> Signup and view all the answers

    Study Notes

    Pharmaceutical Suspensions

    • A pharmaceutical suspension is a type of dosage form consisting of insoluble solid particles dispersed in a liquid vehicle.

    Types of Suspensions

    • One type of suspension may have an organic or oily liquid as the external phase.

    Concentrated Suspensions

    • In a concentrated suspension, the proportion of solid particles is typically high, usually above 20%.

    Insoluble or Poorly Soluble Drugs

    • Suspensions are often used for insoluble or poorly soluble drugs that need to be administered orally.

    Advantages of Suspensions

    • Pharmaceutical suspensions offer an advantage for certain drugs in aqueous solution, as they can improve the bioavailability and stability of the active pharmaceutical ingredient.

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    Description

    This lecture covers the definition and composition of pharmaceutical suspensions, including the dispersion of insoluble solid particles in a liquid medium. It also discusses the use of suspending agents and the characteristics of the external phase.

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