<prompt> Drug causing decrease in late sodium current -NicorandilRanolazineTrimetazidineMolsidominc  <response>: Ans. is b i.e., Ranolazine o Ranolazine was initially assigned as paial fatty acid oxidation inhibitors. However, now it is believed that it acts by a different mechanism. It acts by blocking a late sodium current that facilitates calcium NCX Sodium -Calcium exchanger -4 Calcium overload and decrease left ventricular wall tension -- decreased myocardial oxygen demand. 