New and Old Drug (IMAGE) Rensselaer Polytechnic Institute Caption Linhardt and his colleagues have developed a new and much more efficient process to manufacture the drug fondaparinux. Here the chemical structure of the new drug is compared to the original. Credit Rensselaer Polytechnic Institute Usage Restrictions Please credit. 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.