Brand-name Zyrtec is made by McNeil Consumer Healthcare. Generic versions are made by various manufacturers.
As mentioned, allergies occur when the body's immune system reacts to normally harmless substances that do not bother most people. This reaction is partly caused by the release of histamine from certain cells in the body. Zyrtec blocks histamine from binding to histamine receptors and causing allergy symptoms. Since histamine is responsible for many of the symptoms of allergies, blocking it can be helpful. It is important to note that antihistamines (including Zyrtec) do not help treat nasal congestion caused by allergies, since this symptom is not due to histamine.
STORAGE: Store in a dry place at 15-30 degrees C (59- 86 F).
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