It is widely recognized that the Barbier–Grignard-type reaction is one of the most important methods for forming carbon–carbon bonds and has widespread synthetic applications in modern organic ...

An allergic reaction occurs when your body attacks a foreign, and typically harmless, substance. Learn about common allergens ...

Drug hypersensitivity reactions are drug reactions which are unpredictable. They result from an interaction between a drug substance and the immune system of a hypersensitive person. Hypersensitivity ...

Bee, wasp, yellow jacket, hornet, and fire ant are the insect stings that most often trigger allergic reactions. But most people aren't allergic to insect stings and may mistake a normal sting ...

Either allergic-type reactions or contrast-induced nephropathy may occur after administration of radiographic contrast media. These are entirely different entities with distinct pathophysiologies.