Allopurinol hypersensitivity syndrome

Allopurinol hypersensitivity syndrome is a rare but serious allergic reaction to allopurinol, a medication used to lower uric acid levels in conditions like gout. It can cause symptoms such as rash, fever, swelling, and liver or kidney problems. In severe cases, it may affect multiple organs and become life-threatening. The exact cause isn't fully understood, but genetic factors can increase risk. If suspected, immediate medical attention is necessary to manage the reaction, which may involve stopping the medication and providing supportive treatment. Awareness and early recognition are key to preventing severe complications.