Merck Drug for Heart and Lung Disorder Wins a First-in-Class FDA Approval
Pulmonary arterial hypertension, a disease that leads to worsening lung and heart problems that eventually become life-threatening, is treated with drugs that alleviate symptoms. FDA approval of a new Merck drug marks the first for a therapy addressing an underlying cause of the disease. The Tuesday approval of the Merck drug covers the treatment of…