Zyrtec is a medication used to treat seasonal allergens such as ragweed, grass, animal dander, dust mites, molds and tree pollen. It is also used to treat uncomplicated cases of hives. It is used in adults and children 2 years or older and can be obtained over the counter (without prescription). EMedTV notes that while Zyrtec is "non-sedating" medication, it can still cause drowsiness in some people. If you take Zyrtec, do not operate heavy machinery or drive a car until you know how the medication affects you.
Common Side Effects
The most common side effect of Zyrtec is drowsiness, according to RxList.com. Other common side effects for adults include dry mouth, dizziness and fatigue. EMedTV notes that common side effects for children include sore throat, cough, abdominal pain, nosebleeds, diarrhea or headache.
Serious Side Effects
EMedTV notes that there are serious (but rare) side effects to Zyrtec. If you experience any of the following, contact your doctor immediately. Serious side effects include difficulty breathing, difficult urination, hypertension (high blood pressure), rapid heart rate, confusion, anxiety, an allergic reaction or hives.
Contraindications/Warnings
According to RxList.com, Zyrtec has not been studied in pregnant women. Due to this, Zyrtec should only be taken if necessary and under a doctor's supervision if you are pregnant. If you are nursing, it is not recommended that you take Zyrtec.
Zyrtec is excreted by the kidney, so if you have poor kidney function, you should consult with your doctor prior to taking Zyretc. Likewise, if you have liver problems or have been diagnosed with cirrhosis, you should speak with your doctor before taking this medication. Due to the fact that people 65 and older may have poorer liver or kidney function, you should speak with your doctor prior to taking this medication.
Zyrtec can interact with other medications, so be sure to notify your doctor if you are taking any antidepressants, antipsychotics, narcotics, opiates, theophylline, sleep or anxiety medications or any nausea or vomiting medications.
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