Allergic Reaction to Pollen: Excess __ Production
This page is the CodyCross answer for the clue below from House of Horrors, Group 1116, Puzzle 4 (Slamming Doors).
Question is: Allergic Reaction to Pollen: Excess __ Production
and the answer is: HISTAMINE
Word Meaning:
HISTAMINE — (biochemistry) An amine, C₅H₉N₃, formed by decarboxylation of histidine, that causes dilatation of capillaries, contraction of smooth muscle, and stimulation of gastric acid secretion; it is released during allergic reactions.
Definitions from Wiktionary.