Zyrtec

ZYRTEC (cetirizine HCl) is a prescription medicine that treats both indoor and outdoor allergy symptoms. And it also treats itching due to chronic hives. Studies show that 1 dose of ZYRTEC works for a full 24 hours.

ZYRTEC is also great for the whole family. ZYRTEC is approved to treat indoor and outdoor allergy symptoms in adults and children as young as 2 years old. And it’s also approved to treat indoor allergy symptoms in infants as young as 6 months.

Just 1 dose of ZYRTEC (cetirizine HCl) a day can keep your symptoms under control, year-round. Symptoms from indoor allergies, like pet dander and dust. And outdoor allergies, like trees and ragweed. Plus, ZYRTEC is approved to treat indoor allergies in infants 6 months and up.

Allergies are reactions you have to things called allergens. They are harmless to most people. For the most part, your immune system protects you from things like bacteria and viruses. These types of things try to invade your body. If you have allergies, your body reacts to allergens as if they were harmful invaders. But your immune system is just responding to a false alarm. Due to this, your body can go through a number of reactions. One of these can be the release of histamines. They, in turn, can cause you to have allergy symptoms like a runny nose, itchy eyes, and sneezing.

Antihistamines are medicines. They block the actions of histamines and help relieve your allergy symptoms. ZYRTEC (cetirizine HCl) is an antihistamine.

There are many kinds of allergies. Some of the most common are:

1. Indoor allergies — year-round, can be treated with medicine;

2. Outdoor allergies — seasonal, can be treated with medicine.

Most common outdoor allergy triggers:

• Pollen — released from plants, grasses, trees, and weeds;
• Mold — often found in wet leaves or rotting tree trunks.