What is the characteristic of pH-independent formulations?

Question

Options:

A . Buffering agents that adjust pH to the desired value

B . Drug disperse in the insoluble matrix of rigid hydrophobic materials

C . Hollow systems containing drug surrounded by a polymer membrane

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

Answer: Option A
Answer: (a).Buffering agents that adjust pH to the desired value

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