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A member asked:
How long does it take for claritin (loratadine) to take effect on hives??
3 doctors weighed in across 3 answers
Misinformed: Claritin (loratadine) or any other anti-histamine would treat the itch of a rash, but not treat the rash. Are you expecting claritin (loratadine) to treat the rash?
Answered 1/1/2018
3.9k views
Depends: If not better within 24 hours and you are getting worse, call your physician for and immediate appt or go to the ER
Answered 5/3/2016
3.9k views
3 days to reach peak: Claritin (loratadine) (loratidine) takes 3 days to reach a steady state, so it could take that long for it to work on hives. Other non-drowsy antihistamines are a better choice: Allegra (fexofenadine) reaches peak effect within 2 hours and Zyrtec (cetirizine) reaches peak effect in 1-2 hours. If you see no benefit at all within 5 hours of taking these, they probably will not work for you.
Answered 1/1/2018
2.1k views
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