Tibolone lowers high density lipoprotein cholesterol by increasing hepatic lipase activity but does not impair cholesterol efflux. - Von Eckardstein,A.; Crook,D.; Elbers,J.; Ragoobir,J.; Ezeh,B.; Helmond,F.; Miller,N.; Dieplinger,H.; Bennik,H.C.; Assmann,G. (Clin Endocrinol, 2003)