Fast-Acting 24-Hour Cetirizine Antihistamine for Allergy & Urticaria Relief

Cetirizine hydrochloride 10 mg per Capsulee

Second-generation H₁-antihistamine offering extended daily symptom control

Zyrtec Rapid Liquid Gels

Cetirizine Antihistamine

Non-sedating allergy Capsulees

H₁-antagonist, Second-generation antihistamine

Mode of Action
Blocks histamine H₁ receptors to alleviate sneezing, runny nose, itchy/watery eyes, and hives

Minimal impact on the central nervous system, reducing sedation risk

Indications & Uses
Allergic rhinitis (seasonal or perennial)

Chronic urticaria (hives) in adults and children aged 6 years and older

Rapid onset (20–60 minutes), lasting up to 24 hours

Dosage & Administration
Patient Group Dose
Adults & children ≥6 yrs 1 Capsulee (10 mg) once daily
Elderly (>65 yrs) Consider medical guidance
Pediatric (<6 yrs) Use only under physician supervision

Can be taken with or without food; morning dosing preferred if drowsiness occurs

Form: Liquid-filled soft gel Capsulee

Pack size: 42 Capsulees

Status: Over-the-counter (OTC)

Storage: 20–25 °C, avoid heat and moisture

Common (>1%) Less Common Rare/Severe
Drowsiness/fatigue Headache, dry mouth, sore throat Palpitations, severe skin reactions

Stomach pain, nausea Dizziness, cough, diarrhea Confusion, hallucinations (rare)

May cause drowsiness—avoid driving or using machines until individual response is known

Avoid alcohol and CNS depressants due to additive effects

Exercise caution if you have liver or kidney impairment

CNS depressants (e.g., alcohol, opioids, sedatives): increased sedation risk

P-glycoprotein inhibitors (e.g., vemurafenib) can elevate cetirizine levels

Avoid co-use with other antihistamines

Drug Classification
Generic: Cetirizine HCl 10 mg

Class: Second-generation Antihistamine

Availability: OTC for adults and children aged ≥6 years

❓ FAQs
Q1. How quickly does Zyrtec work?
A: Relief usually begins within 20–60 minutes, lasting up to 24 hours .

Q2. Will Zyrtec make me sleepy?
A: Most users remain alert, but up to 14% may experience drowsiness; morning dosing may help .

Q3. Can children take it?
A: Yes, for ages 6 and up at the same 10 mg dose; under 6 only with physician approval .

Q4. Is it safe during pregnancy or breastfeeding?
A: Generally considered safe in pregnancy, but avoid breastfeeding unless advised by a doctor .

Q5. Can I combine Zyrtec with nasal sprays or other antihistamines?
A: Yes, safe to combine with intranasal steroids; avoid combining with other H₁ blockers due to increased sedation risk.

What is Zyrtec Rapid Liquid Capsules used for?
Zyrtec Rapid 10 mg vents fast and sustained relief from nasal allergies (sneezing, runny nose, itchy/watery eyes) and hives with once-a-day dosing and minimal sedation.

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