A recent paper by Italian HCM specialists found that chest pain completely resolved for 73% of patients who took the drug ranolazine. The researchers also found that the drug was safe and well tolerated.  In addition, it reduced arrhythmias for those whose arrhythmias were triggered by ischemia and it improved biomarkers in HCM patients.

This study is a follow up to the 2018 RESTYLE-HCM study, which found that while ranolazine did not improve heart failure symptoms in HCM, it was useful for treating chest pain.