Abstract
The present investigation was undertaken with an objective to prepare and evaluate liquid fill formulations of non-steroidal anti-inflammatory drug, ibuprofen (IBU), in order to improve its dissolution properties and thereby its bioavailability. Liquid fill formulations were prepared by employing different co-solvents and surfactants like polyethylene glycol 400 (PEG 400), propylene glycol (PG) and polyvinylpyrrolidone (PVP K-30). The liquid fills were characterized by assay, rheology, clarity, in vitro dissolution studies and FTIR. More than 90% of the drug was released within 5 min from PVP K30 based formulations. Formulations containing PVP K 30 gave better dissolution properties when compared to formulations without PVP K 30, and complete drug dissolution was observed within 5min. Compatibility studies of IBU PEG 400, PG and PVP by IR method indicated that the excipients are compatible.
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