Pharmacology Which of the following drug’s use alone is to be avoided in a patient with adrenaline producing pheochromocytoma? A Phentolamine B Enalapril C Clonidine D Methyldopa 💡 Explanation Which of the following drug's use alone is to be avoided in a patient with adrenaline producing pheochromocytoma? ✓ Correct Answer: A. Phentolamine