Meglumine (N-Methyl-D-glucamine) is a specialty chemical widely used as a pharmaceutical excipient, particularly as a solubilizing and stabilizing agent in iodinated contrast media for diagnostic imaging. It forms salts with iodinated compounds, such as diatrizoate meglumine and iothalamate meglumine, enhancing their water solubility and tolerability for use in X-ray and CT scan procedures to visualize blood vessels, organs, and tissues.

Additionally, meglumine serves as a counterion and stabilizer in various injectable formulations, improving drug solubility and stability. It is also employed in some oral and topical pharmaceutical products to aid in the formulation of active ingredients.