Dapsone

Anti-neutrophilic; inhibits myeloperoxidase and neutrophil chemotaxis

Response rate
Effective for cutaneous symptoms in most cases
Onset
Days–weeks
Route
Oral 25-150 mg daily
Line
2nd
IgM effect
Minimal complement effect

Evidence summary

Anti-neutrophilic agent effective for cutaneous manifestations of HUVS. Eiser et al. reported sustained remission in a patient resistant to cyclophosphamide and corticosteroids. May be the preferred agent for cutaneous-predominant disease. Requires G6PD testing before initiation.

Sources (2)

DetailsEiser AR et al. (1997) Sustained dapsone-induced remission of hypocomplementemic urticarial vasculitis--a case report · AngiologyDOI
DetailsHamid R et al. (2019) Treatment of urticarial vasculitis: A systematic review · J Allergy Clin ImmunolDOI