Development and Evaluation of Gastro-retentive Floating Tablet of Rilpivirine Hydrochloride for the Treatment of HIV
Besides enormous improvements in drug delivery, oral route has been highly and effectively utilized route of administration. Floating drug delivery that is also known to be low density system is advancement in the class of gastro-retentive drug delivery system. In the present research work, floating drug delivery of Rilpivirine hydrochloride was developed by overcoming various limitations and troubles associated with the drug including poor absorption in intestinal pH and degradation when comes in contact with higher pH environment.  Prepared formulations were evaluated for various parameters like friability, hardness, thickness, drug content analysis, floating properties and in-vitro drug release study. Based on the evaluation, concluded that floating drug delivery system is a non-toxic as well as cost-effective technique for the rationale of enhancing bioavailability and absorption of poorly water soluble drugs. The improvement in gastric residence time is a clear sign. It can be able to use in the future for more acidic soluble drugs to enhance solubility and absorption.
Keywords: Floating drug delivery, gastric residence time, Rilpivirine, effervescent, NNRTI.
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