Pharmacology Which of the following drug used in the Management of Pulmonary Hypeension acts by inhibiting Phosphodiesterase enzyme? A Epoprostenol B Bosentan C Nifedipine D Sildenafil 💡 Explanation Which of the following drug used in the Management of Pulmonary Hypeension acts by inhibiting Phosphodiesterase enzyme? ✓ Correct Answer: D. Sildenafil