Indigotindisulfonate sodium Excipient (pharmacologically inactive substance)What is it?Indigotindisulfonate sodium, also known as indigo carmine, is a blue dye used in medical imaging to measure kidney function and as a special stain for Negri bodies.[1] Share this Article Latest News Medical News Stroke: Migraine with aura linked to higher risk May 23, 2026 Dementia: Quitting smoking linked to 16% lower risk Vitamin D supplementation could support cognitive health from birth Dementia risk may affect women’s cognition more strongly 'Silent' heart attacks linked to faster cognitive decline Colon cancer: Pre-op immunotherapy may prevent recurrence Related Drugs Fidanacogene Elaparvovec Cerave Anti-Itch Centrum Adult Crovalimab Cyltezo Prefilled Syringe Zepbound Pen Mylanta One Uretron Ds Medihoney Wound And Burn Dressing Lidotrode