Boehringer Ingelheim Italia S.p.a.

Farmitalia Carlo Erba S.p.a.

Grazia Maffione

Luigi Moro

Enzo Cereda

Marco Turconi

Alessandro Rigamonti

Antoine Ezhaya

Guido Neri

Enrica Dubini

Piero Iamartino

Lino Pontello

Crystalline and pharmacologically active monohydrates of endo-2,3-dihydro-N-(8-methyl-8-azabicyclo[3.2.1]oct-3-yl)-2-oxo-1H-benzimi dazole-1-carboxamide hydrochloride and of endo-3-ethyl-2,3-dihydro-N-(8-methyl-8-azabicyclo[3.2.1]oct-3-yl)-2-oxo-1H -benzimidazole-1-carboxamide hydrochloride.

Crystalline forms of

Orally administrable pharmaceutical preparation containing an active ingredient to be released in the lower part of the gastrointestinal tract, i.e. in the large intestine, and especially colon, consisting of a core containing a therapeutically active substance and coated with three protection layers at different solubility. The manufacturing and the use of these preparations are also described.

Orally-pharmaceutical preparations with colon selective delivery

New pharmaceutical sustained-release compositions, formulated as tablets, are prepared by mixing the active ingredient with excipient already granulated and coated with polymers and/or copolymers or a polymers- and/or copolymers-mixture substantially insoluble in water. Such pharmaceutical preparations enable one to enhance or to decrease very easily and precisely the sustained-release effect by regulating the granulometry of the excipient, the excipient/active ingredient ratio, the hardness, and the percentage of the polymers and/or copolymers or of the polymers- and/or copolymers-mixture.

Pharmaceutical sustained-release compositions

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Milan, Italy

Grazia Maffione