Best non sedating antihistamine
H1 receptors are associated with human tissue involving capillaries, and H2 receptors predominate in the lining of the stomach.
Some people find certain types work well for them and others do not.
They are now being developed in order to eliminate the possibility of cardiac toxicity.
One of the first of these, fexofenadine, was approved in July of 1996, and more third generation antihistamines are under development.
Rather, they temporarily relieve symptoms such as: sneezing, itching, nasal drainage, and hives.
Click here for an in-depth discussion about allergy symptoms, including a very useful “symptom analyzer” tool.