One of the most widely used drugs in the world isn't really a drug, at least not in the usual sense. It's more like a dye. Physicians call this drug "contrast," shorthand for contrast agent. Contrast ...

ANN ARBOR, Mich. — As more and more Americans undergo CT scans and other medical imaging scans involving intense X-rays, a new study suggests that many of them should take a pre-scan drug that could ...

Researchers have found that patients with family and personal history of allergic reactions to contrast media are at risk for future reactions, according to a new large study. Allergic reactions to ...

Preparation guidelines for a CT scan depend on the type of scan you’re having. If you’re having a bowel scan or a scan with contrast dye, you may need to adjust your diet. Preparation for a CT scan ...