ANTIHISTAMINES

INTRODUCTION Histamine, [2-(imidazol-4-y1) ethylamine], which is biosynthesized by decarboxylation of the essential amino acid histidine, is found in all organs and tissues of the human body. Reaction: Histamine is stored within the secretory granules of mast cells, maintaining a pH of 5.5. It exists in a positively charged state and forms ionic complexes with the … Read more