All Day Allergy-D

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.

Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).

Cetirizine and pseudoephedrine is a combination medicine used to treat cold or allergy symptoms such as nasal and sinus congestion, sneezing, itching, watery eyes, or runny nose.

Cetirizine and pseudoephedrine may also be used for purposes not listed in this medication guide.

You should not use this medicine if you are allergic to cetirizine or pseudoephedrine, or if you have:

• narrow-angle glaucoma;

• severe high blood pressure (hypertension);

• severe coronary artery disease;

• if you are unable to urinate; or

• if you are allergic to hydralazine (Atarax, Vistaril).

Do not use cetirizine and pseudoephedrine if you have taken an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, phenelzine, rasagiline, selegiline, and tranylcypromine.

Ask a doctor or pharmacist if it is safe for you to take this medicine if you have other medical conditions, especially:

• heart disease, coronary artery disease, high blood pressure, or heart rhythm disorder;

• diabetes;

• a thyroid disorder;

• glaucoma;

• kidney or liver disease;

• an enlarged prostate; or

• problems with urination.

FDA pregnancy category C. It is not known whether cetirizine and pseudoephedrine will harm an unborn baby. Do not use this medicine without a doctor's advice if you are pregnant.

Cetirizine and pseudoephedrine may pass into breast milk and may harm a nursing baby. Antihistamines and decongestants may also slow breast milk production. Do not use this medicine without a doctor's advice if you are breast-feeding a baby.

Older adults may be more likely to have side effects from cetirizine and pseudoephedrine.

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.

Seek emergency medical attention if you think you have used too much of this medicine.

Ask a doctor or pharmacist before using this medicine if you are also using any other drugs, including prescription and over-the-counter medicines, vitamins, and herbal products. Some medicines can cause unwanted or dangerous effects when used together. Not all possible interactions are listed in this medication guide.

Taking this medicine with other drugs that make you sleepy or slow your breathing can worsen these effects. Ask your doctor before taking cetirizine and pseudoephedrine with a sleeping pill, narcotic pain medicine, muscle relaxer, or medicine for anxiety, depression, or seizures.

More frequent side effects include: insomnia. See below for a comprehensive list of adverse effects.