Aggregation and coalescence of the dispersed phase can affect the stability of a dispersed system. What can be done about it? A. shake the container well before dispensing the dose to the patient B. prepare the formulation with a thickener to increase the viscosity of the external phase or dispersion medium C. choose a compatible emulsifying agent with an appropriate HLB number for the dispersed phase D. all of these are solutions to the problem, so this is the answer

Which of the following directly influences the in vitro physical stability of an oil-in-water emulsion inwhich the drug is incorporated in the dispersed phase?a. Amount of preservative addedb. Molecular weight of the drugc. Solubility of the emulsifier in waterd. Particle size of the internal phasee. Type of suspending agent use

is a  form of instability in aqueous and non-aqueous gels, in which  the dispersion medium is squeezed out in droplets .Question 11AnswerImbibitionRapid Sedimentation Syneresis SwellingCaking

mong the following options, which factor primarily influences the stability of an emulsion containing a lipophilic drug in the dispersed phase?a. Amount of preservative addedb. Molecular weight of the drugc. Solubility of the emulsifier in waterd. Particle size of the internal phasee. Type of suspending agent used

Which of the following is NOT one of the three desirable characteristics specifically expected of a suspension as a dosage form? A. the velocity of falling particles is greater for large and dense particles than for small, less dense particles B. particle size of the dispersed phase (suspensoid) should remain uniform and not form aggregates C. the suspension should pour readily and evenly from the container D. the dispersed phase should settle slowly and be easily resuspended with gentle shaking

Pharmaceutical Colloidal  dispersions  are ususally dispensed in __________________  bottles to enhance  the _________________Question 6AnswerAmber glass --> stability of the product Sterilized --> stability to microbial growth Transparent -->  The appearance of the product wide mouth --> pourability of the liquid dosage form Oversized -->  ability to shake it before  administration.