Sedating antihistamines and asthma validating research

Some antihistamines may also have what is known as an antimuscarinic effect.This means that the medicine can also block another type of receptor found on the surface of certain cells.

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(Mucosae are membranes lining body cavities such as your mouth, nose and digestive tract.) If your skin is damaged or your immune system detects a foreign substance, histamine is released from mast cells.

The histamine binds to special sites (receptors) on other cells, called H1 receptors.

If you get severe life threatening anaphylactic allergic reactions, you should carry an adrenalin pen (Epi-pen).

Learn more about emergency treatment from Food Allergy Canada.

Antihistamines are a group of medicines which act by blocking the action of the chemical called histamine in the body.

Either H1 or H2 histamine receptors can be blocked by medicines, but the group commonly known as antihistamines blocks the H1 receptor.Antihistamines are also used in the treatment of feeling sick (nausea) and being sick (vomiting).However, the exact way that they ease these symptoms is not fully understood.Treatment options for seasonal allergies Antihistamines These aim to provide quick relief of symptoms by lessening the effects of histamine which is one of the chemicals released by the body during an allergic reaction. Some types of allergies produce multiple symptoms, and in rare cases, an allergic reaction can become very severe, this severe reaction is called anaphylaxis.Signs of anaphylaxis include: How is an anaphylaxis triggered?The choice of treatment option will vary and will depend on how severe your allergy reactions are and how they affect the quality of your life.

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