Otsuka Pharmaceutical Company, Limited

Other

Masaaki Odomi

Chikamasa Yamashita

Toru Nishibayashi

Hidekazu Toyobuku

Akira Tsuji

Yuji Sugahara

Yoshimichi Sai

Yoshihiro Ishizue

Kozo Ishida

Ikumi Tamai

Kazuya Sakata

Kaszuyo Koshino

The present invention provides a pharmaceutical preparation that can improve absorption of a pharmaceutical compound in the gastrointestinal tract and that provides, through oral administration or like method, a blood concentration from which sufficient remedial effects can be expected, and a method for producing such a preparation. The invention is directed to a pharmaceutical preparation exhibiting excellent gastrointestinal absorbability comprising a compound recognized by a proton-coupled transporter and a pH-sensitive polymer in an amount sufficient for the gastrointestinal tract to acquire a pH at which the proton-coupled transporter optimally absorbs the compound into a cell.

Gastrointestinal absorption enhancer mediated by proton-coupled transporter and its preparing method

Provisions of a foam inhibitor which effectively inhibits foaming (bubbling) caused at the time of dissolving dry compositions and of a water-soluble dry composition which comprises the foam inhibitor. The form inhibitor is suitable for inhibiting foaming caused at the time of dissolving dry compositions comprising saccharide which contain a hydrophobic amino acid as essential ingredient; and the water-soluble dry composition contains pharmacologically active proteinaceous substance, saccharide and hydrophobic amino acid having the hydropathy index of about not less than 2, wherein the concentration of the hydrophobic amino acid is in the range of 0.05 wt. % to less than 40 wt. % based on the total amount of the dry composition.

Water-soluble dry compositions

Water soluble dry compositions

A water-soluble eye drop comprising (a) at least one selected from carteolol and an acid addition salt thereof, (b) at least one acrylic polymer selected from a straight-chain type polyacrylic acid and a pharmaceutically acceptable water-soluble salt thereof, and (c) at least one selected from a water-soluble alkali metal salt and a water-soluble amine. The water soluble eye drop has a remarkably long duration time of drug efficacy, and is superior in intraocular pressure inhibition action and is effective for treatment of glaucoma.

Water-soluble eye drop

A highly absorbable pharmaceutical composition containing, as the active ingredient, methyl 3-phenyl-2(E)-propenyl 1,4-dihydro-2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate in an amorphous state and a pH-dependent type copolymer of methacrylic acid or its derivatives which composition has been prepared by dissolving the two components together in an organic solvent and thereafter removing the solvent.

Highly absorbable pharmaceutical composition

Growing community of inventors

Tokushima, Japan

Masaaki Odomi