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CetirizinevsLevocetirizine
Levocetirizine is active isomer. Same effect at half dose, less drowsiness.
Medicine A
Cetirizine
GenericCetirizine 10mg
Made byVarious
FormTablet
VS
Medicine B
Levocetirizine
GenericLevocetirizine 5mg
Made byVarious
FormTablet
Different Compositions— These work through different mechanisms. Effects may vary.
Final verdict
Which one wins?
Levocetirizine preferred — lower dose, less drowsiness.
Side-by-Side Breakdown
Cetirizine vs Levocetirizine — key aspects compared
Aspect
Cetirizine
Levocetirizine
Composition
Cetirizine 10mg
Levocetirizine 5mg
Manufacturer
Various
Various
Form
Tablet
Tablet
Key difference
Levocetirizine is active isomer. Same effect at half dose, less drowsiness.
Why They're Different
Not interchangeable — here's what to know
- Cetirizine contains Cetirizine 10mg, while Levocetirizine contains Levocetirizine 5mg — these work through different mechanisms in the body.
- They are NOT automatically substitutable — switching requires your doctor's approval.
- Side effects, dosages, timing, and drug interactions differ between them.
- Price comparison alone is not a valid reason to switch — different drugs have different suitability for your condition.
- If considering a switch, consult your doctor with both options — they'll assess based on your full medical picture.
- Use GoDavaii AI to compare interactions with your other medicines before any switch decision.
AI-Verified · Cross-checked against 40,000+ drug interactions
Not medical advice
Individual responses to Cetirizine and Levocetirizine vary based on dose, health conditions, and other medicines. Always consult your doctor or pharmacist before switching or starting any medicine. For emergencies, call 112.
Frequently Asked Questions
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