Antihypeensive drug which is beneficial or neutral in the lipid metabolism is
**Core Concept**
The question tests the knowledge of antihypertensive drugs' effects on lipid metabolism. Lipid metabolism involves the breakdown and synthesis of lipids, including cholesterol, in the body. Certain antihypertensive drugs can influence lipid profiles, either positively or negatively, which is crucial in managing cardiovascular risk.
**Why the Correct Answer is Right**
The correct answer is **C. ACE inhibitors**. ACE inhibitors, such as lisinopril, work by blocking the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This blockade leads to vasodilation and decreased blood pressure. Additionally, ACE inhibitors have been shown to have neutral or beneficial effects on lipid profiles. They do not significantly alter HDL (good cholesterol) or LDL (bad cholesterol) levels, and may even increase HDL slightly. This makes them a good choice for patients with hypertension and dyslipidemia.
**Why Each Wrong Option is Incorrect**
**Option A:** Thiazide diuretics can actually worsen lipid profiles by decreasing HDL levels and increasing triglycerides. They are not beneficial or neutral in lipid metabolism.
**Option B:** Beta-blockers, such as propranolol, can have a negative effect on lipid profiles by decreasing HDL levels and increasing triglycerides. They are not beneficial or neutral in lipid metabolism.
**Option D:** Calcium channel blockers, such as verapamil, can have a variable effect on lipid profiles, but are not generally considered to be beneficial or neutral.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that not all antihypertensive drugs are created equal when it comes to their effects on lipid metabolism. When choosing an antihypertensive, consider the potential impact on lipid profiles to minimize cardiovascular risk.
**Correct Answer:** C. ACE inhibitors.