FORMULATION AND EVALUATION OF NIFEDIPINE SUSTAINED RELEASE PELLETS
Journal Title: International Research Journal of Pharmacy (IRJP) - Year 2011, Vol 2, Issue 8
Abstract
Nifedipine is a dihydropyridine derivative effectively used in management of various cardio vascular diseases in long-term therapy. The main objective of this work is formulation of Nifedipine sustained release capsules. This drug has low half life of 2 hr and is rapidly eliminated. Nifedipine is practically insoluble in water. Solubility of drug plays a major role in absorption and ultimately affects bioavailability. As it is poorly soluble it shows irregular bioavailability upon oral administration. Nifedipine lacks to maintain its concentration at site of action and side effects are more in conventional dosage form. Hence to minimize these affects we found it as an excellent candidate for sustained released oral drug delivery system. Drug release from marketed tablet modified release formulation showed 98.27% and Nifedipine sustained release pellets in capsules showed 98.80%. After stability studies sustained release capsules showed 99.18%. It is concluded that formulation F9 sustained release pellets in capsule was concluded as superior than marketed sustained release tablet formulation. Among the different formulations prepared, trial no F9 with ethyl cellulose N20 of 0.5% concentration and HPMC E5 with 20% concentration was found to have satisfactory dissolution profile.
Authors and Affiliations
T Akelesh , Perla Sravan , R Venkatnarayanan
Keywords
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