Enterosoluble hard-capsulated medicaments
AssigneesShionogi & Co., Ltd., Shin-Etsu Chemical Co., Ltd.
InventorsYasushi Takagishi, Yoshio Doi, Noboru Hoshi
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Abstract
The invention provides a novel means for overcoming the problem of undue and irregular delay in the exhibition of the effect of medicine when a patient is administrated with an enterosoluble hard-capsulated medicament. The unexpected discovery that the key parameter ruling the smooth transfer of an enterosoluble capsule from the stomach to the intestinal canals is the overall specific gravity of the capsule has led to the establishment of the invention which proposes an enterosoluble hard-capsulated medicament having an overall specific gravity of at least 1.05 or, preferably, at least 1.10.
Claims1
An enterosoluble encapsulated medicament which is weighted with a weighting agent so that the entire encapsulated medicament possesses an overall specific gravity of at least 1.05, and the medicament is a suspension of the effective ingredient in an oily base, and the enterosoluble encapsulating material consists essentially of an enterosoluble cellulose derivative selected from the group consisting of cellulose acetate phthalate, hydroxypropylmethylcellulose phthalate, methylcellulose phthalate and cellulose acetate succinate.
Dependencies are inferred from the claim text.