摘要:
The object of the present invention is to improve the solubility of sphingoglycolipids having low solubility in water. Disclosed is a lyophilized composition comprising the &agr;-glycosylceramide represented by the following formula (A) or a salt thereof, a polyoxysorbitan fatty acid ester and disaccharide or monosaccharide, and preferably additional deoxycholic acid or histidine, and a process for preparing it: wherein R1 represents H or OH; X denotes an integer in the range of 7-25; R2 represents any one of the substituents —CH2(CH2)YCH3, —CH(OH)(CH2)YCH3, —CH(OH)(CH2)YCH(CH3)2, —CH═CH(CH2)YCH3, or —CH(OH)(CH2)YCH(CH3)CH2CH3, wherein Y denotes an integer in the range of 5-17; either one of R3 or R4 represents H, and the other represents H, OH, NH2 or NHCOCH3; either one of R5 or R6 represents H, and the other represents OH; either one of R7 or R8 represents H, and the other represents OH; R9 represents H, CH3 or CH2OH.
摘要:
An oral dosage form comprising: (a) granulocyte colony stimulating factor or erythropoietin; (b) surfactant(s); (c) fatty acid(s); and (d) enteric material. The oral drug preparations provided by the present invention avoid inactivation of the principal ingredient during the process of pharmaceutical manufacturing and display enhanced absorption of the ingredient from the intestinal tract, particularly as a result of the addition of fatty acid(s) to the drug composition. As such, oral dosage forms of the present invention can allow for dosage reductions, facilitate accurate dose control, and increase the practical usefulness of the bioactive proteins.