A Synthetic Version of Heparin (IMAGE) Rensselaer Polytechnic Institute Caption A synthetic version of low molecular weight heparin is reversible and would be better suited for patients with poor kidney function. Credit UNC Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.