Generic Name: cetirizine (se TIR a zeen)Brand Names: All Day Allergy, All Day Allergy Children's, Indoor/Outdoor Allergy Relief, Zyrtec, Zyrtec Hives
Cetirizine is an antihistamine that reduces the natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose.
Cetirizine is used to treat cold or allergy symptoms such as sneezing, itching, watery eyes, or runny nose.
Cetirizine is also used to treat itching and swelling caused by chronic urticaria (hives).
Cetirizine may also be used for other purposes not listed in this medication guide.What is the most important information I should know about Indoor/Outdoor Allergy Relief (cetirizine)?Cetirizine can cause side effects that may impair your thinking or reactions. Be careful if you drive or do anything that requires you to be awake and alert. Avoid drinking alcohol. It can increase some of the side effects of cetirizine. Tell your doctor if you regularly use other medicines that make you sleepy (such as other cold or allergy medicine, narcotic pain medicine, sleeping pills, muscle relaxers, and medicine for seizures, depression, or anxiety). They can add to sleepiness caused by cetirizine. Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever.What should I discuss with my healthcare provider before taking Indoor/Outdoor Allergy Relief (cetirizine)?You should not use this medication if you are allergic to cetirizine.
Before taking cetirizine, tell your doctor about all of your medical conditions.FDA pregnancy category B. This medication is not expected to be harmful to an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant during treatment. Cetirizine can pass into breast milk and may harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Older adults may need to take a lower than normal dose. Follow your doctor's instructions.
Take this medication exactly as directed on the label, or as prescribed by your doctor. Do not use it in larger amounts or for longer than recommended.
You may take this medication with or without food.
The chewable tablet must be chewed before you swallow it.
Measure liquid medicine with a special dose-measuring spoon or cup, not a regular table spoon. If you do not have a dose-measuring device, ask your pharmacist for one.Call your doctor if your symptoms do not improve, if they get worse, or if you also have a fever. Store cetirizine at room temperature away from moisture and heat.
Take the missed dose as soon as you remember. If it is almost time for your next dose, wait until then to take the medicine and skip the missed dose. Do not take extra medicine to make up the missed dose.
Overdose symptoms may include feeling restless or nervous, and then feeling drowsy.
fast, pounding, or uneven heartbeat;
weakness, tremors (uncontrolled shaking), or sleep problems (insomnia);
severe restless feeling, hyperactivity;
problems with vision; or
urinating less than usual or not at all.
Less serious side effects may include:
sore throat, cough;
nausea, constipation; or
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
There may be other drugs that can interact with cetirizine. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.