Pulmonary arterial hypertension (PAH) drugs encompass a range of therapies designed to lower pulmonary arterial pressure, improve right ventricular function, and alleviate symptoms such as dyspnea and fatigue. Key product categories include endothelin receptor antagonists (ERAs), phosphodiesterase type-5 (PDE-5) inhibitors, prostacyclin analogs and receptor agonists, and soluble guany... https://www.patreon.com/posts/pulmonary-drug-127719813