✅ Product Benefits

• Effective allergy relief: Blocks peripheral H₁ receptors to reduce symptoms such as sneezing, rhinorrhea, itching, and hives in allergic rhinitis and urticaria. Also alleviates allergen-induced asthma symptoms. 

• Low sedation risk: At the standard dose, causes minimal drowsiness in most patients. Behavioral changes are rare. 

• Once-daily dosing convenience: Adults and children (≥6 years): 10 mg once daily; younger children follow age-based syrup dosing. Effective duration ~24 hours. 

• Fast absorption & consistent levels: Peak plasma in ~1 hour; half-life ~11 hours; reliable results across adult populations. 

• Affordable and widely accessible: Priced ~৳ 2 per tablet (৳ 30 per strip of 15)—readily available across pharmacies in Bangladesh. 

ℹ️ Key Precautions & Safety Notes

• Contraindications: Avoid if there's a known allergy to cetirizine or related compounds (e.g. hydroxyzine). 

• Common side effects: Somnolence (~2–14%), headache (11–14%), fatigue (~6%), dry mouth (5%), dizziness (2%), diarrhea (2–3%), malaise (4%). Rare effects: bronchospasm, tremor, hallucinations.

• Drug interactions: Minimal clinically significant interactions; no major issues reported with theophylline, ketoconazole, erythromycin, pseudoephedrine, or azithromycin. CNS depressants may enhance sedation. 

• Special populations:

  • Elderly or with renal/hepatic impairment: May require dose reduction to 5 mg daily; clearance is slowed in reduced renal function. 

  • Pregnancy & breastfeeding: FDA Category B. Cetirizine is excreted in breast milk—use only if clearly needed. 

• Warnings: Use caution if driving or operating machinery, especially if experiencing drowsiness. 

📊 Dosing Summary

✅ Quick Overview

• Generic: Cetirizine Hydrochloride 10 mg

• Pharmacology: Selective peripheral H₁ receptor antagonist

• Onset: ~30–60 minutes; Duration: ~24 hours

• Main benefit: Relief of allergic rhinitis, urticaria with minimal sedation

• Price: ~৳ 2 per tablet, strip of 15 ≈ ৳ 30

• Availability: Widely available across Bangladesh retail and ecommerce pharmacies