| abstract |
It is intended to provide a novel and useful galactose derivative constituting a drug carrier by which a drug can be efficiently transported into the liver, a drug carrier containing this derivative and a medicinal composition containing this carrier together with a drug. Namely, a galactose derivative comprising galactose, an appropriate spacer and a definite lipid; a drug carrier containing this derivative and a cationic lipid; and a medicinal composition containing this carrier together with a drug (preferably a double-stranded RNA, a double-stranded DNA or an oligonucleic acid). |