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Pharmaceutical Disperse Systems Emulsions Quiz

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Pharmaceutical Disperse Systems Emulsions Quiz

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Questions and Answers

What are the structurally complex types of emulsions mentioned in the text?

Oil in water in water (o/w/w) and water in oil in oil (w/o/o)

Water in oil in water (w/o/w) and oil in water in oil (o/w/o) (correct)

Water in water in oil (w/w/o) and oil in oil in water (o/o/w)

Oil in water in oil (o/w/o) and water in oil in water (w/o/w)

What are the two principal types of emulsions?

Oil in oil (o/o) and water in water (w/w)

Water in water (w/w) and oil in oil (o/o)

Oil in water (o/w) and water in oil (w/o) (correct)

Water in oil (w/o) and oil in water (o/w)

Why are the pharmaceutical uses of multiple emulsions extremely limited?

Due to their possible reversion to the primary emulsion (correct)

Because they are not effective as emulsifying agents

Because they have a short shelf life

Because they are difficult to produce

What type of emulsion may be administered topically or orally?

Oil in water (o/w) Signup and view all the answers

What are emulsifying agents used for stabilizing emulsions?

Principally surface-active agents Signup and view all the answers

What is a key advantage of pharmaceutical emulsions?

They may be used to deliver drugs with low aqueous solubility Signup and view all the answers

What is a disadvantage of pharmaceutical emulsions?

They are thermodynamically unstable and need to be stabilized Signup and view all the answers

For what purpose can pharmaceutical emulsions be commonly used?

To enhance the taste of therapeutic agents Signup and view all the answers

When can oil in water emulsions be administered?

Both orally and topically Signup and view all the answers

What determines the type of emulsion formed during preparation?

The phase of lower stability forms the external phase Signup and view all the answers