Pharmacology Which of the following statements about hydralazine is not true ? A It causes direct relaxation of the blood vessels B It causes dilatation of both arteries and veins C Postural hypotension is not a common problem D It increases plasma renin activity 💡 Explanation Which of the following statements about hydralazine is not true ? ✓ Correct Answer: B. It causes dilatation of both arteries and veins