The Development of a Floating Drug-Delivery System for Metronidazole
Pharmaceutical Technology Europe
The authors developed a metronidazole-based floating drug-delivery system to investigate the effect of rate-controlling polymers on release pattern and duration of buoyancy in matrix tablets.
By Shamsuddin Sultan Khan and Mesbah Uddin Talukder
Sustained-release dosage forms enable prolonged action of a drug in the body. Much research has focused on overcoming the short residence times and unpredictable gastric emptying times of drugs in sustained-release oral drug-delivery systems (1). A floating drug-delivery system floats in the gastric juice without affecting the gastric emptying rate. It forms a cohesive gel barrier that serves as a reservoir and releases the drug over the desired period of time. This technique helps increase a drug's gastric residence time and reduces the variability in bioavailability (2, 3).
This article was also published in our US sister publication Pharmaceutical Technology and can be read here.
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