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Abstract
The preparation of a sustained release dosage form for pseudoephedrine hydrochloride was evaluated. Beadlets (PS) containing pseudoephedrine hydrochloride were prepared by spraying a slurry of pseudoephedrine hydrochloride, Eudragit® S-100, dibutyl sebacate and alcohol onto non-pariel seeds via the Wurster column process. The oven-dried PS beadlets were coated with different levels of Eudragit® RS (poorly water permeable) and Eudragit® S-100 (enteric resin). In-vitro dissolution