How long does it take for cetirizine to take effect?

Related questions

1. How long do Zyrtec side effects last?
2. How do you take Zyrtec?
3. Which is better loratadine or cetirizine?
4. Is cetirizine good for throat infection?
5. Can you OD on cetirizine?
6. Can cetirizine make you sleepy?
7. What's the difference between loratadine and cetirizine?
8. Is cetirizine safe for kidneys?
9. What happens if you take too much antihistamine?
10. How much antihistamine can I take in a day?

Tags

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2. #other
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5. #claritin
6. #acting
7. #people
8. #exposed
9. #hours
10. #antihistamines
11. #least
12. #experience
13. #allergen
14. #single
15. #relief
16. #histamine
17. #after
18. #reaction