Why is Zyrtec prescribed?

Cetirizine (Zyrtec) is prescribed for the treatment of common allergies such as sneezing, itching, colds, runny and stuffy nose and watery eyes.

What does it do?

Cetirizine, classified as a second-generation antihistamine, primarily works by blocking the action of histamine in the peripherals; thus, reducing the symptoms of allergic reactions.

How should I take it?

Zyrtec is available as 10mg tablet that is intended for oral administration as a whole, not to be crushed or chewed, and should be taken with or without food as directed by the doctor.

The dosage strength depends on every patient’s condition and the doctor’s prescription. It is strictly advised that you do not self-medicate and only take this drug after consulting with your doctor or pharmacist to determine the best dosage and dosing schedule for the treatment of your condition.

What if I missed a dose?

Taking the dose properly at the scheduled time is needed to attain the desired effect of the drug. If you miss a dose, take it as soon as you remember. However, if it is near the time of the next dose, skip the missed dose and catch the next dose at the regular time. Do not take two doses just to make up for your missed dose.

What are the special precautions before taking Zyrtec?

Before taking Cetirizine, tell your doctor or pharmacist if you have any allergies to food or to the drug itself as it may contain several inactive ingredients, which can cause allergic reactions or problems.

Inform your doctor about your past and current medical history especially if you have or have had liver disease, heart problems, dysrhythmia, enlarged prostate gland, diabetes and depression.

Avoid drinking alcohol as this may cause dizziness and drowsiness which can add to the effects of Cetirizine.

Consult your doctor regarding all the other medications you use before getting surgery.

For the drug label information of Zyrtec, click here.

Does it have any side effects?

It is important to note that all drugs have corresponding side effects and adverse reactions. Additional information may be obtained when you ask your doctor or pharmacist.

Common side effects may include:
• Body malaise
• Burning pain
• Constipation
• Decreased sense of taste
• Dizziness
• Dry mouth
• Fatigue
• Headache
• Heartburn
• Nausea
• Sore throat
• Upset stomach

Serious side effects may include:
• Angina
• Blurred vision
• Confusion
• Dysrhythmia
• Dysuria
• Hallucinations
• Hepatitis
• Insomnia
• Orofacial dyskinesia
• Tachycardia
• Tongue discoloration
• Tremors
• Urinary retention

Is it safe to take it with another drug?

Some drug interactions may cause serious or life-threatening reactions when administered together. Immediately inform your doctor if you are taking Zyrtec with any of the following medications:

• Alfuzosin
• Alogliptin
• Amiloride
• Benadryl
• Chlorpheniramine
• Clobazam
• Codeine
• Cordarone
• Coumadin
• Eliglustat
• Hyaluronidase
• Hydrocodone
• Isocarboxacid
• Jantoven
• Latuda
• Lomitapide
• Neurontin
• Nefazodone
• Phenelzine
• Plasil
• Pregabalin
• Ritonavir
• Symmetrel
• Tranylcypromine
• Uniphyllin
• Valium
• Vfend
• Vilanterol
• Xanor
• Zithromax
• Zolpidem
• Zyloprim

If you are using of any prescription, non-prescription and herbal medications, inform your doctor and pharmacist for proper information and ask for other possible interactions not listed within this section.

How should I store it?

Store Zyrtec in room temperature (25°C) in a clean environment away from light and moisture. Do not refrigerate. Keep away from children. Do not remove the desiccant in the original container. Throw away if unused or expired. Do not flush in the toilet. Consult the pharmacist for proper disposal.

What action should I take in case of overdose?

Immediately call an ambulance and seek immediate medical attention to prevent further complications or possible death.

Is it safe for pregnant or breastfeeding women?

There are no adequate studies and data regarding the safety of Cetirizine to determine drug-associated risks of major maternal defects, miscarriages and fetal outcomes.

The presence of Cetirizine in human milk is still unknown. Consult your doctor before breastfeeding.

The use of Zyrtec in pregnant and breastfeeding women should be evaluated by your doctor to determine its potential benefits and risks.

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