Pharmacology Which of the following is a true statement about Endothelin-1, a potent vasoconstrictor? A Used in Hypertension treatment B Produced in increased amounts in Pulmonary Arterial Hypertension C Dilates vascular smooth muscle cells D Safely indicated in liver injury 💡 Explanation Which of the following is a true statement about Endothelin-1, a potent vasoconstrictor? ✓ Correct Answer: B. Produced in increased amounts in Pulmonary Arterial Hypertension