Non-aqueous colonic purgative formulations

A - Human Necessities – 61 – K

Patent

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Details

A61K 33/42 (2006.01) A61K 31/19 (2006.01) A61K 33/04 (2006.01) A61K 33/06 (2006.01) A61K 33/14 (2006.01)

Patent

CA 2256896

Orally administered colonic purgative formulations and methods of their use for effecting partial or complete purgation of the colon in mammals, the formulations consisting of non-aqueous admixtures of a purgative salt selected from the group consisting of Mg3(PO4)2, MgHPO4, Mg(H2PO4)2, MgSO4, MgCl2, Na2SO4, sodium tartrate, potassium tartrate, magnesium tartrate and mixtures thereof, administered in tablet or capsule form in purgative effective concentrations. Preferred embodiments make use of at least one or more magnesium phosphate salts, more preferably dibasic magnesium phosphate; other preferred embodiments include the addition of binders, dispersants and buffers which do not adversely affect osmolality or effectiveness of the purgative formulations.

L'invention a trait à des formulations purgatives du côlon à administration orale ainsi qu'à leur mode d'emploi aux fins d'une purge partielle ou complète du côlon de mammifères. Ces formulations consistent en des mélanges non aqueux d'un sel purgatif choisi dans le groupe constitué par Mg¿3?(PO¿4?)¿2?, MgHPO¿4?, Mg(H¿2?PO¿4?)¿2?, MgSO¿4?, MgCl¿2?, Na¿2?SO¿4?, du tartrate de sodium, du tartrate de potassium et du tartrate de magnésium ainsi que par leurs mélanges. Ces formulations sont administrées par voie orale, sous forme de comprimés ou de gélules renfermant des concentrations efficaces de purgatif. On utilise, pour les réalisations préférées, au moins un sel de phosphate de magnésium, sinon davantage, et, mieux du biphosphate de magnésium. Dans d'autres réalisations, on ajoute à ces formulations des agglutinants, des agents de dispersion et des tampons ne perturbant ni l'osmolalité ni l'efficacité de la formulation purgative.

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