Prescription Medication Information


Zyrtec (Cetirizine) is an antihistamine which provides relief of allergy symptoms such as watery eyes, runny nose, itching eyes, sneezing, itching and hives.

How to Take Zyrtec
Take Zyrtec by mouth once a day as directed. This medication may be taken with or without food. Do not increase your dose or take this more often than directed.

Side Effects
Drowsiness, sleepiness, dry mouth, fatigue, dizziness, increased appetite, and nausea may occur when taking Zyrtec. These effects should subside as your body adjusts to the medication. If they continue or become bothersome, inform your doctor.

Notify your doctor if you develop any of these serious effects while taking this medication: chest pain, rash, trouble breathing. Zyrtec may cause dizziness or drowsiness. Use caution engaging in activities requiring alertness. If you notice other effects not listed above, contact your doctor or pharmacist.

Drug Interactions
Tell your physician of any over-the-counter and prescription medication you may be taking including sedatives, tranquilizers, narcotic pain relievers, sleep medicine, drugs for anxiety, barbiturates (e.g., phenobarbital), psychiatric medicines, other antihistamines. Do not start or stop any medicine without doctor or pharmacist approval.

Before taking Zyrtec tell your doctor your medical history, and inform them of liver or kidney disease, asthma, any blood disorders, and any allergies. Zyrtec can increase sensitivity to sunlight. Avoid prolonged sun exposure. Wear protective clothing and a sunscreen when outdoors. Limit intake of alcohol to prevent excessive drowsiness.

Tell your doctor if you are pregnant before taking Zyrtec. This medication is excreted into human breast milk. Consult your doctor before breast-feeding.

Missed Dose
If you miss a dose of Zyrtec, take it as soon as remembered; do not take it if it is near the time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up

Zyrtec can affect results of allergy tests. Remind your doctor you are taking this drug if you are scheduled for any tests.

Do not share this medication with others. Keep Zyrtec and all medications out of the reach of children.

This information regarding Zyrtec is intended to supplement, not substitute the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that the use of Zyrtec is safe, appropriate, or effective for you. Consult your healthcare professional before using Zyrtec.

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