**Core Concept**
Hypertension is a common side effect of several drugs that affect renal function, vascular tone, or sodium balance. The question tests knowledge of drug-induced hypertension, particularly drugs that cause vasoconstriction, sodium retention, or impaired renin-angiotensin-aldosterone system (RAAS) regulation.

**Why the Correct Answer is Right**
Levodopa (L-DOPA) is a precursor to dopamine and is used in Parkinson’s disease. It does not cause hypertension. In contrast, cyclosporine (an immunosuppressant) causes hypertension via renal vasoconstriction and reduced glomerular filtration, leading to sodium retention. NSAIDs inhibit prostaglandin synthesis, reducing renal blood flow and promoting sodium/water retention. Erythropoietin (EPO) stimulates red blood cell production and can cause hypertension due to increased blood viscosity and reduced vasodilation. Thus, levodopa is the only drug listed that does not typically induce hypertension.

**Why Each Wrong Option is Incorrect**
Option A: Erythropoietin causes hypertension due to increased blood viscosity and reduced vasodilation.
Option B: Cyclosporine induces hypertension by causing renal vasoconstriction and sodium retention.
Option C: NSAIDs reduce renal prostaglandins, impairing renal perfusion and promoting fluid retention.

**Clinical Pearl / High-Yield Fact**
Always remember: NSAIDs, cyclosporine, and erythropoietin can cause drug-induced hypertension—levodopa is a notable exception. This is a classic exam trap—don’t assume all drugs affect BP equally.

✓ Correct Answer: D. Levodopa