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Centre of Evidence of Dermatology Best practice guidelines

Guidelines chronic spontaneous urticaria Updated on december 2019

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Adult and adolescent > 12 years
Stage 1 / first-line treatment

Back to decision-making tree Print last updated on 18/09/2020

Second-generation anti-H1 antihistamines
single dose per day

Second-generation anti-H1 antihistamines at conventional dose (single dose, MA-compliant) are effective and well tolerated.

They are therefore the first-line treatment in CSU.
There are few reasons to prefer one molecule over another.



Experts recommend taking this medication in the evening, because of the risk of drowsiness and to avoid night-time flare-ups.

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stage 2 if failure of anti-H1 antihistamines

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