A person is being treated for Human Immunodeficiency Virus–1. He developed hypertriglyceridemia and hypercholesterolemia. Most likely drug implicated for these adverse effects is :
**Core Concept**
The question is testing the knowledge of antiretroviral therapy side effects, specifically the **metabolic complications** associated with certain **HIV protease inhibitors**. Hypertriglyceridemia and hypercholesterolemia are common lipid abnormalities seen in patients on long-term antiretroviral therapy.
**Why the Correct Answer is Right**
The most likely drug implicated in this scenario is a **protease inhibitor**, which is known to cause **lipid metabolism alterations**. These drugs can inhibit the enzyme **cytochrome P450 3A4**, leading to increased levels of **low-density lipoprotein (LDL) cholesterol** and **triglycerides**. This is due to the **hepatic VLDL overproduction** and decreased **LDL receptor-mediated clearance**.
**Why Each Wrong Option is Incorrect**
**Option A:** This is not typically associated with the lipid abnormalities described.
**Option B:** While this can have various side effects, it is not the most likely cause of hypertriglyceridemia and hypercholesterolemia in this context.
**Option C:** This option does not directly correlate with the development of hypertriglyceridemia and hypercholesterolemia as a side effect.
**Clinical Pearl / High-Yield Fact**
A key point to remember is that **HIV protease inhibitors**, such as **ritonavir** and **lopinavir**, are well-known to cause **metabolic side effects**, including **lipodystrophy** and **dyslipidemia**.
**Correct Answer:** D. Ritonavir.