5 Questions
What is the definition of a liquid dosage form?
Homogeneous liquid preparations containing one or more active ingredients dissolved in a suitable vehicle
What is the dispersed phase in a suspension?
Solid materials that are insoluble in the dispersion medium
What are solutions in the context of liquid dosage forms?
Homogeneous liquid dosage forms prepared by dissolving the active ingredient(s) in a solvent
What defines a disperse system?
A system in which one substance is distributed throughout a second substance in discrete units
What is the dispersed phase in an emulsion?
A liquid that is neither soluble nor miscible with the liquid of the dispersing phase
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.
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.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
