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TOP PAGE>Allergy Encyclopedia>Reactions of type I>Anaphylactic shock

Anaphylactic shock

Anaphylactic shock is an allergy reaction in various organs in the body rapidly against allergens. The onset is very rapid and dangerous. It is classified as type I because IgE antibody is involved.

Food-dependent exercise-induced anaphylaxis

It does not cause an allergic reaction only by eating the allergen food. However, if you exercise after eating, it develops. It can be prevented by refraining from exercising 30 minutes after meals.


Decreased blood pressure, disturbance of consciousness, cardiac arrest, lack of oxygen

First aid after symptoms appear

Call an ambulance as soon as symptoms appear. You will perform an adrenaline muscle injection and give first aid until the ambulance arrives.

About adrenaline intramuscular injection

First aid that can be used by an individual when anaphylactic shock happens. The ingredient "adrenaline" contained in it temporarily softens symptoms. You can save the patient's life until an ambulance comes.
Product name is "epipen injection".

How to use

Push against the front and outside of the thigh. Then, the built-in needle comes out and adrenaline is automatically injected into the muscle.

About adrenaline

Adrenaline is called "struggle or escape hormone". It is a hormone that brings its body to excitement and battle condition when a human being fears, strong anxiety, crisis of life, emergency is felt.
There is the action on the body as follows.

  • Contract blood vessels and increase heart function to raise blood pressure
  • Smooth muscles of the bronchi are loose and the airways spread

This effect is effective against anaphylactic shock. However, the adrenaline injection is temporary, as adrenaline injection is weak because of its weak persistence in the body.

Common points and differences with noradrenaline

Adrenaline is a change in noradrenaline. So, there are similarities and differences between the two substances. Both are secreted to defend the body and enter a battle situation.
Adrenaline increases heart rate and increases blood sugar. On the other hand, noradrenaline does not act to raise heart rate like adrenaline. It is mainly adjusting the mental state in the brain.

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