It's general biochemical name is an Antigen - anti = against and gen = genesis.
It is called Histamine. Histamine causes the allergic response during an athema attack.
Something that causes an allergic response (an allergy) is called an "allergen".
Histamine
Histamine
An allergic response is an immune over reaction to a harmless allergen such as pollen which will adversely affect the host, when the allergen is pollen this causes hayfever.
The primary allergen is a protein called Fel d 1 that is produced by cat saliva and sebaceous glands, which causes either an allergic or asthmatic response.
Allergen
The fight or flight response is a physical response; a strong stimulus or emergency causes the release of a chemical called nor-adrenaline (also called norepinephrine)
what chemical weathering called oxidation causes
I have no idea but I have the same issue. As far as I know I'm not allergic to anything else.
Harmless plant proteins
No, an allergic reaction is typically caused by a release of histamines from the eosinophils. Antibodies are produced by lymphocytes in response to a bacterial infection.
Stimulus.
Antihistamines
none
The toxic chemical byproduct of alcohol metabolism that causes nausea and vomiting is called ?