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Which of the following oral controlled release system is shown in the picture?(a) Oral osmotic pump(b) Reservoir device(c) Hydrodynamic pressure controlled system(d) Altered density systemsI have been asked this question in an interview for internship.This is a very interesting question from Biopharmaceuticals topic in chapter Biopharmaceuticals of Drug Biotechnology

Answer»

Right answer is (c) Hydrodynamic pressure controlled system

The explanation is: Hydrodynamic controlled SYSTEMS are generated by swelling of a hydrophilic gum which will be further used to activate the delivery of drugs. The device comprises of a rigid, shape retaining hosing enclosing a collapsible COMPARTMENT CONTAINING the drug. Such systems are ALSO known as push-pull osmotic pumps.



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