<p>Epalrestat is aldose reductase inhibitor. The aldose reductase inhibitors have a distinct mechanism of action, affecting the underlying disease process in diabetic neuropathy, although the extent of the polyol pathway involvement is yet to be determined. This medicine suppresses accumulation of sorbitol in cells by inhibiting action of aldose reductase which converts glucose of sugar to sorbitol. Epalrestat may improve motor and sensory nerve conduction velocity and subjective neuropathy symptoms.</p>