Zyrtec tablets are usually prescribed to prevent or treat symptoms of hay fever, cold or allergy such as sneezing, itching, runny nose or watery eyes.

Zyrtec belongs to a class of antihistamine medications. It works by blocking the histamine action, the substance in the body that produces allergic symptoms. The active ingredient of Zyrtec is cetirizine. Zyrtec pills are available in 5mg and 10mg strength for oral administration only.

The main side effects of Zyrtec can impair your thinking activity or reactions. Therefore it is better to avoid driving or any actions which require you to be alert and awake. In case you take Zyrtec along with other medications that make you sleep, the drowsiness effect may increase twice. Alcohol drinking may also aggravate the side effects of Zyrtec pills.

It is necessary to inform your health care provider if the side effects experienced by you get worse, your symptoms are not improving or you have fever.

It was proved that Zyrtec does not create any harm to the unborn baby. However if you are breastfeeding, cetirizine can penetrate into breast milk and may harm a nursing baby.

Zyrtec tablets are contraindicated to those who are allergic to cetirizine.

Overdose symptoms include restlessness and nervousness. Seek immediate medical attention if you overdose.

Today there are brand and generic versions of Zyrtec tablets which can be bought online. Actually generic Zyrtec is equally effective and safe as its brand counterpart, but costs much cheaper. Generic Zyrtec contains the same active ingredient – cetirizine in the same dosage, as the strength and purity of generic medications are strictly controlled by FDA. If you decide to buy generic Zyrtec online with no prescription, compare and find the best prices on Zyrtec from licensed top-rated pharmacies.