Podcast
Questions and Answers
What is the dispersion medium for coarse suspensions?
What is the dispersion medium for coarse suspensions?
- Solid
- Aqueous
- Alcoholic
- Oily liquid (correct)
What characterizes deflocculated suspensions?
What characterizes deflocculated suspensions?
- Cloudy supernatant
- Loosely packed sediment
- Low sedimentation rate
- Clear supernatant (correct)
What is the dispersed phase in coarse suspensions?
What is the dispersed phase in coarse suspensions?
- Insoluble solid (correct)
- Liquid
- Soluble solid
- Gas
What type of suspensions are formulated for non-stable drugs?
What type of suspensions are formulated for non-stable drugs?
What is the role of pharmaceutical excipients in suspensions?
What is the role of pharmaceutical excipients in suspensions?
Study Notes
Suspension Characteristics
- The dispersion medium for coarse suspensions is typically a liquid, which can be water or a non-aqueous solvent.
- Deflocculated suspensions are characterized by individual particles or very small aggregates, which are dispersed throughout the dispersion medium.
Coarse Suspensions
- The dispersed phase in coarse suspensions is composed of large, visible particles that settle out of the dispersion medium over time.
Formulation for Unstable Drugs
- Suspensions are formulated for non-stable drugs to improve their stability and solubility.
Role of Pharmaceutical Excipients
- Pharmaceutical excipients play a crucial role in suspensions as they help to stabilize the dispersed phase, prevent settling, and improve the overall physical and chemical stability of the suspension.
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Description
Test your understanding of pharmaceutical suspensions formulation principles, including physicochemical principles, comparison between Flocculated and Deflocculated suspensions, the role of pharmaceutical excipients, and independent formulation of suspensions.