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Generic Allegra(Generic name: Fexofenadine)
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Allegra prescription: Fexofenadine is used for the treatment of seasonal allergies and chronic urticaria (hives) in adults and children 6 years of age or older. Fexofenadine is an oral, 'second generation' antihistamine that is used to treat the signs and symptoms of allergy that are due to histamine. It is similar to the other second generation antihistamines loratadine (Claritin), cetirizine (Zyrtec) and azelastine (Astelin). Histamine is a chemical that is responsible for many of the signs and symptoms of allergic reactions, for example, swelling of the lining of the nose, sneezing, and itchy eyes. Histamine is released from histamine-storing cells (mast cells) and then attaches to other cells that have receptors for histamine. The attachment of the histamine to the receptors causes the cell to be 'activated,' releasing other chemicals that produce the effects that we associate with allergy, e.g., sneezing. Fexofenadine blocks one type of receptor for histamine (the H1 receptor) and thus prevents activation of H1 receptor-containing cells by histamine. Unlike the first generation antihistamines, fexofenadine and other second-generation antihistamines do not readily enter the brain from the blood, and, therefore, they cause less drowsiness.
Available strengths: 30 mg / 100 tab; 180 mg / 90 tab; 180 mg / 60 tab; 30 mg / 50 tab; 180 mg / 30 tab; 30 mg / 30 tab;
This belongs to the group of medicines known as antihistamines.
It is used to prevent and relieve allergic conditions such as hayfever and some allergic skin reactions.
Exposure to pollen, pet fur, house dust or an insect bite can cause the body to produce a chemical called histamine. The release of histamine causes allergic symptoms which can include rashes, sneezing, watery eyes and a running or blocked nose.
Antihistamines stop the effects of histamine and help to relieve these symptoms.
Allegra is available in tablet form.
It is also sometimes known as Telfast. You may notice the use of either of these names on the packaging of your medicine.
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