Teikoku Seiyaku Co., Ltd.

Teikoku Seiyaku Kabushiki Kaisha

Asahi Kasei Kogyo Kabushiki Kaisha

Toru Hibi

Takeru Fujii

Akiya Yamada

Shigeyuki Takama

Seiichi Sako

Seiichi Sakoh

Noriko Tsuzuki

Kouki Kitagawa

Pharmaceutical compositions of matter adapted for intravaginal administration comprise a biologically active polypeptide, an absorption promoter, such as an anionic and/or nonionic surfactant or a nonionic surfactant and an aliphatic carboxylic acid, optionally an animal and/or vegetable protein and a nontoxic pharmaceutically acceptable carrier or diluent therefor, in a formulation suitable for intravaginal administration. Preferred compositions comprise calcitonin as the biologically active polypeptide. Preferred absorption promoters are anionic surfactants, e.g., sodium lauryl sulfate, and the combination absorption promoter of a nonionic surfactant and a medium chain aliphatic carboxylic acid or its salt, e.g. polyoxyethylenealkylphenylether and a medium chain aliphatic carboxylic acid.

Intravaginal delivery of biologically active polypeptides

A physiologically active substance well capable of permeating biomembrane according to the present invention is represented by: ##STR1## where R represents a residue of a physiologically active substance comprising a peptide, amino acid, aliphatic amine having a phenol skeleton, amino sugar, nucleoside or lactam compound and a residue of physiologically active derivative thereof. The biomembrane permeability of a substance with poor biomembrane permeability can be improved by introducing an adamantyl group to the physiologically active substance.

Physiologically active substance well capable of permeating biomembrane

A high-absorbable transvaginal preparation having excellent absorbability of the active ingredient, which comprises a biologically active polypeptide and an absorption promoter comprising a polyoxyethylenealkylphenyl ether and one or more compounds selected from the group consisting of an N-acylamino acid, cholic acids, pectic acid, taurine, saccharin, glycyrrhizic acid, aspartame, or a salt thereof.

High-absorbable transvaginal preparation containing biologically active

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Kawasaki, Japan

Toru Hibi