Question

What are the characteristics of osmotic pressure-controlled systems?

a.

Buffering agents that adjust pH to the desired value

b.

Releases the drug at a zero-order kinetics

c.

Hollow systems containing drug surrounded by a polymer membrane

d.

Formation of complexes between the drug and anion/cation exchange resins

Answer: (b).Releases the drug at a zero-order kinetics

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Q. What are the characteristics of osmotic pressure-controlled systems?

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