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Zyrtec

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Zyrtec

Zyrtec review





Zyrtec, which is generically prescribed as cetirizine, is commonly used to treat the symptoms of allergies, such as runny nose, cough, sneezing, itchy, watery eyes, tearing, and hives. Zyrtec is an antihistamine. Antihistamines block the reaction that histamines cause in people allergic to them.

Zyrtec is not appropriate for everyone. A thorough medical history should be assessed prior to prescribing this medication. Patients with a medical history that includes hydroxyzine reactions or liver disease should not take Zyrtec. Some patients with liver disease can take this medication but require careful monitoring while undergoing drug therapy with Zyrtec. Patients over 65 years of age may experience a higher sensitivity to Zyrtec and may require a lower dosage.

The American Food and Drug Administration has rated Zyrtec with a pregnancy risk category B rating. This means that Zyrtec is not expected to cause harm or birth defects to an unborn baby. Zyrtec does pass through the mother’s breast milk and may affect a nursing baby. The prescribing physician should discuss whether the benefits outweigh the risks prior to prescribing Zyrtec to a pregnant or nursing woman.

Zyrtec comes with a risk of side effects, some of which are severe. A patient experiencing a serious side effect or an allergic reaction should seek immediate emergency medical attention. An allergic reaction will present with symptoms which include facial swelling, including swelling of the lips, mouth, throat, or tongue, hives, and difficulty breathing. Other serious side effects which require immediate emergency medical attention include symptoms such as disorientation or dizziness that prevents normal function.

Other less serious side effects typically do not require emergency medical care but should be reported to the prescribing physician. Patients should be encouraged to report all side effects. Less serious side effects include symptoms that include drowsiness, dizziness, headaches, or dry mouth. Less serious side effects can often be reduced to a tolerable level by reducing the amount of medication the patient takes.

Zyrtec should be taken exactly as it has been prescribed by the physician. If the patient misses a dose, the dose should be remembered. However, if it is almost time for the next scheduled dose, the missed dose should be skipped to avoid a potential overdose. If an overdose is suspected, the patient should seek immediate emergency medical care. The patient should never take a double dose of this medication. An overdose will present with symptoms that include severe drowsiness, and nausea.

There is a risk of negative drug interactions associated with Zyrtec. A thorough medical history should be understood prior to prescribing this medication. Patients should be urged to inquire with the prescribing physician before taking any new medications, including over the counter medications and herbal remedies. Medications that are known to cause negative interactions include cetrazine, over the counter cough and cold medications, additional allergy medications, or medications that are likely to cause drowsiness.

Zyrtec may cause sudden onset drowsiness or dizziness. Patients should be urged to use caution when operating machinery or driving a car while undergoing drug therapy with Zyrtec, especially in the first few weeks. Patients should be cautioned that alcohol will intensify drowsiness and dizziness caused by Zyrtec, even after the effects of alcohol have worn off. Alcoholic beverages should be consumed with care or not at all while undergoing drug therapy with Zyrtec.

Zyrtec has the following structural formula:

Chemical structure of zyrtec


• Molecular formula of zyrtec is C21H25ClN2O3
• Chemical IUPAC Name is 2-[2-[4-[(4-chlorophenyl)-phenyl-methyl]piperazin-1-yl]ethoxy]acetic acid
• Molecular weight is 388.888 g/mol
Zyrtec available : 5mg chew tabs, 10mg chew tabs, 1mg/ml syrup 120ml bottle, 1mg/ml syrup, 5mg tablets, 10mg tablets

Generic name: Cetirizine

Brand name(s): Alerlisin, Cetirizina, Cetirizinum, Cetrizin, Cetryn, Formistin, Reactine, Setir, Virlix, Ziptek, Zirtek, Zyrlex

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