Which medication is commonly used to treat proteinuria associated with membranous nephropathy?

The medication commonly used to treat proteinuria associated with membranous nephropathy is ACE inhibitors. These drugs are particularly effective because they help reduce proteinuria and decrease intraglomerular pressure by promoting vasodilation of the efferent arterioles in the kidney. This action not only helps in lowering protein excretion in urine but also has a beneficial effect on kidney function over time.

In cases of membranous nephropathy, proteinuria can be significant, leading to complications such as nephrotic syndrome. ACE inhibitors are often a first-line treatment because they address both the symptoms of proteinuria and the underlying renal hemodynamics affected by the condition.

Other medications mentioned do not have the same targeted effect on proteinuria in this context. Beta-blockers are primarily used for managing hypertension and heart conditions but do not specifically reduce proteinuria. Calcium channel blockers, while they may help manage hypertension, also lack a direct role in reducing proteinuria in nephropathies. Statins are used to manage cholesterol levels and have limited direct effects on proteinuria and do not address the underlying conditions related to membranous nephropathy directly.