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Zyrtec (Cetirizine Hydrochloride)

  Zyrtec (Cetirizine Hydrochloride)

Zyrtec (Cetirizine Hydrochloride)

Zyrtec is a fast-acting, non-drowsy antihistamine formulated with Cetirizine Hydrochloride, designed to provide 24-hour relief from allergy symptoms. Whether it’s seasonal allergies or year-round sensitivities, Zyrtec helps manage sneezing, runny nose, itchy eyes, and throat irritation so you can go about your day in comfort.

Why Choose Zyrtec (Cetirizine Hydrochloride)?

  • Provides 24-hour relief from common allergy symptoms
  • Works within 1 hour of taking the first dose
  • Effective against indoor and outdoor allergens
  • Non-drowsy formula for most users
  • Suitable for both seasonal and perennial allergic rhinitis

How to Use Zyrtec (Cetirizine Hydrochloride)?

  • Take Zyrtec exactly as directed on the package or by your healthcare provider
  • For adults and children 6 years and older: typically 1 tablet (10 mg) once daily
  • For children under 6: consult a pediatrician before use
  • Can be taken with or without food
  • Avoid taking more than the recommended dose
  • Store in a cool, dry place away from direct sunlight

Important Safety Information about Zyrtec

  • Do not use if you’ve had an allergic reaction to Cetirizine or Hydroxyzine
  • Consult your doctor if you are pregnant, breastfeeding, or have kidney or liver issues
  • May cause drowsiness in some individuals, use caution when driving or operating machinery
  • Alcohol or sedatives may increase the drowsiness effect
  • Keep out of reach of children

Fact Table

 
Facts Details
Active Ingredient Cetirizine Hydrochloride
Strength 10 mg per tablet (common adult dosage)
Form Tablets, Chewables, Liquid Syrup
Indications Seasonal allergic rhinitis, perennial allergic rhinitis, and chronic urticaria
Onset of Action Within 1 hour
Duration of Action Up to 24 hours
Recommended Age Adults and children 6 years and older (pediatric use with guidance)
Usual Adult Dose 1 tablet (10 mg) once daily
Pregnancy Category Category B – consult doctor before use
Liver/Kidney Adjustment Dose adjustment may be needed – consult physician
Common Side Effects Drowsiness, dry mouth, fatigue, headache, dizziness
Interactions May interact with alcohol, sedatives, and other CNS depressants
Storage Instructions Store at room temperature, away from moisture and heat
Over-the-Counter (OTC) Yes

Common Side Effects

Like all medications, Zyrtec (Cetirizine Hydrochloride) can cause side effects, although not everybody gets them. Understanding these side effects can help you use this medication safely and effectively.
  • Mild drowsiness (especially in sensitive individuals)
  • Dry mouth
  • Fatigue
  • Headache
  • Dizziness
  • Stomach discomfort
If you experience any side effects, discuss them with your healthcare provider. They can offer advice and may adjust your treatment if necessary. Report any severe or unexpected side effects immediately.

How Can You Buy Zyrtec (Cetirizine Hydrochloride)?

You can order Zyrtec (Cetirizine Hydrochloride) using these methods on our website:
  1. Order Online
  2. Order by Phone
  3. Order by Fax
  4. Order your refills
Visit our How to order page.

Frequently Asked Questions

  1. How long does it take for Zyrtec to start working?
    Zyrtec usually starts working within 1 hour of taking it. Some people may notice relief even sooner, especially from sneezing or runny nose symptoms.
  2. Can I take Zyrtec every day, even if I don’t have allergy symptoms that day?
    Yes, Zyrtec can be taken daily as a preventive measure during allergy season or for chronic allergic conditions, but it’s always best to follow your doctor's advice.
  3. Will Zyrtec make me drowsy?
    Zyrtec is classified as a second-generation antihistamine and is less likely to cause drowsiness than older antihistamines. However, some people may still experience mild sleepiness.
  4. Is Zyrtec safe for children?
    Yes, Zyrtec is available in formulations for children. However, dosage depends on the child’s age and weight, so be sure to use the correct pediatric product and follow the dosing instructions.
  5. Can I take Zyrtec if I’m pregnant or breastfeeding?
    Always consult your healthcare provider before using Zyrtec while pregnant or breastfeeding. It is generally considered low risk, but individual circumstances vary.
  6. What should I do if I accidentally miss a dose?
    If you miss a dose, take it as soon as you remember. If it’s almost time for your next dose, skip the missed one; do not double the dose to catch up.
  7. Is it safe to drive after taking Zyrtec?
    Most people can safely drive after taking Zyrtec, but if you feel drowsy or less alert, it’s best to wait until you feel normal again before driving or operating machinery.
  8. Can I drink alcohol while taking Zyrtec?
    It’s best to avoid alcohol while taking Zyrtec, as it can increase the risk of drowsiness and reduce your ability to focus or stay alert.
  9. How should I store Zyrtec tablets?
    Store Zyrtec at room temperature, away from moisture and heat. Make sure the bottle is tightly closed and out of reach of children.
Dr. Conor Sheehy, PharmD, BCPS

Dr. Conor Sheehy, PharmD, BCPS is a practicing clinical pharmacist that works in primary care. He supports other members of the healthcare team including physicians, mid-level providers, nurses, and other clinical staff. He also likes to use his drug knowledge to inform his patients and the public about the benefits and risks they can expect from their medications. His clinical specialties include: anticoagulation, diabetes management, and psychiatric care.

Please note that due to government rules and regulations, orders may not exceed 3 months in supply.
Please call 1-800-258-0477 or email us if you have any questions or concerns.