The purpose of this study was to formulate a superporous hydrogel (SPH) containing carvedilol self-nanoemulsifying drug delivery system. Effects of formulation parameters (amount of SPH and 0.1 N HCl used during drug loading) were studied in 32 factorial design. Response surface plots showed significant effect of the parameters on hydrogel swelling, carvedilol content, and carvedilol in vitro release. Regression equations were generated to calculate the desirable responses.
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