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What Is Cetirizine and Pseudoephedrine Used For?

How Does Cetirizine and Pseudoephedrine Work?

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. Cetirizine is an antihistamine, which means it 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. However, antihistamines are not helpful for nasal congestion, which is why cetirizine is combined with pseudoephedrine.
 
Pseudoephedrine is a nasal decongestant, and it works by constricting blood vessels in the nose, helping to relieve nasal congestion. It is useful for relieving nasal congestion due to many causes, including allergies and the common cold.
 

Is Cetirizine and Pseudoephedrine Used in Children?

Cetirizine and pseudoephedrine is approved for children age 12 and older. Talk with your child's healthcare provider before giving this drug to a younger child.
 

Is Cetirizine and Pseudoephedrine Used for Off-Label Reasons?

On occasion, your healthcare provider may recommend cetirizine and pseudoephedrine for something other than allergies. Currently, there are no universally accepted off-label uses of this drug.
 
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