Suppository preparation having excellent absorption property
First Claim
1. A suppository having excellent absorption property, comprising (1) a water-soluble medicine, (2) a water-soluble substance selected from the group consisting of water-soluble salts and water-soluble saccharides at a concentration exhibiting 1.5-6.0 fold of osmotic pressure of isotonic sodium chloride solution, and (3) at least 0.01 W/W % of an absorption promoter which is at least one N-acyl amino acid derivative or N-acyl peptide derivative represented by the formula:
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space="preserve" listing-type="equation">R--CO--A,wherein R is an aliphatic hydrocarbon group, a substituted aliphatic hydrocarbon group, an aromatic hydrocarbon group, a substituted aromatic hydrocarbon group, an aryl-substituted lower hydrocarbon group or a substituted aryl-substituted lower hydrocarbon group;
wherein said substituted aliphatic hydrocarbon group, said substituted aromatic hydrocarbon group or said substituted aryl-substituted lower hydrocarbon group is substituted with a member selected from the group consisting of a lower alkyl group, a hydroxyI group, a carboxylic acid group, an alkoxy group, a phosphoric acid group, an amino group, an imino group and a halogen; and
A is an amino acid residue or a peptide residue.
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Accused Products
Abstract
A preparation containing an absorption promoter selected from N-acyl amino acid derivatives or N-acyl peptide derivatives represented by the formula: R-CO-A (R is an aliphatic hydrocarbon group, an aromatic hydrocarbon group or an aryl-substituted lower hydrocarbon group which may optionally be substituted, and A is an amino acid residue or a peptide residue), preferably in the presence of a salt at a concentation exhibiting higher osmotic pressure than isotonic sodium chloride solution, and a medicine is found to promote absorption of the medicine through a gastrointestinal organ such as the colon and rectum, and through the vagina.
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Citations
9 Claims
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1. A suppository having excellent absorption property, comprising (1) a water-soluble medicine, (2) a water-soluble substance selected from the group consisting of water-soluble salts and water-soluble saccharides at a concentration exhibiting 1.5-6.0 fold of osmotic pressure of isotonic sodium chloride solution, and (3) at least 0.01 W/W % of an absorption promoter which is at least one N-acyl amino acid derivative or N-acyl peptide derivative represented by the formula:
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space="preserve" listing-type="equation">R--CO--A,wherein R is an aliphatic hydrocarbon group, a substituted aliphatic hydrocarbon group, an aromatic hydrocarbon group, a substituted aromatic hydrocarbon group, an aryl-substituted lower hydrocarbon group or a substituted aryl-substituted lower hydrocarbon group;
wherein said substituted aliphatic hydrocarbon group, said substituted aromatic hydrocarbon group or said substituted aryl-substituted lower hydrocarbon group is substituted with a member selected from the group consisting of a lower alkyl group, a hydroxyI group, a carboxylic acid group, an alkoxy group, a phosphoric acid group, an amino group, an imino group and a halogen; and
A is an amino acid residue or a peptide residue. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification