Which statement correctly matches the hypertensive medication with its side effect?

The correct choice reflects a well-documented side effect profile for direct vasodilators. These medications work by directly relaxing the vascular smooth muscle, leading to vasodilation and decreased blood pressure. However, one common side effect of this mechanism is headache, which occurs due to the rapid drop in blood pressure and subsequent changes in cerebral blood flow. Additionally, tachycardia can occur as a compensatory response to the lowered blood pressure; the body attempts to maintain adequate perfusion by increasing heart rate.

Understanding the side effects associated with hypertensive medications is crucial for effective patient management. A solid grasp of these aspects can aid in monitoring and adjusting treatment plans, ensuring patient safety and comfort.