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Q. |
What are the characteristics of hydrodynamic pressure controlled systems? |
A. | Buffering agents that adjust pH to the desired value |
B. | Drug disperse in an insoluble matrix of rigid hydrophobic materials |
C. | Generated by swelling hydrophilic hum |
D. | Formation of complexes between the drug and anion/cation exchange resins |
Answer» C. Generated by swelling hydrophilic hum |
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