Heparinoids are proteoglycans, which are mainly found in the endothelium, but also in connective tissue structures. They act similarly to heparin (but are much less effective) by enhancing antithrombin III activity and inhibiting thrombin and activated factor X.
Heparinoids include
:- heparan sulphate -
dermatan sulphate -
danaparoid (organaran
) - pentosan polysulphate.