PROCESS FOR MAKING GASTRORETENTIVE DOSAGE FORMS

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The present invention relates to a novel process for making oral solid gastro- retentive forms, comprising the steps of providing a powder mixture comprising a hydrophobic powder, overgranulating this powder mixture with a granulating solu-tion into an overgranulated paste, and drying said paste into a solid, as well as to pharmaceutical solid dosage forms which are re-tained in the stomach or upper gastrointestinal tract for a controlled delivery of a drug.