Antipyrinum

Antipyrine is one of the drugs that induce leucocytosis, similar to ergotin, salicylates, and tuberculin. Acts especially on the vaso-motor centers, causing dilation of capillaries of skin and consequent circumscribed patches of hyperæmia and swelling. In large doses causes profuse perspiration, dizziness, cyanosis, and somnolence, albumen and blood in urine. Acute erythema multiforme.