What do systematic reviews say?

Levamisole vs steroids or placebo or both, or no treatment

Levamisole showed no clear difference in adverse effects: leucopenia compared with steroids or placebo or both, or no treatment (low certainty).

• Non‐corticosteroid immunosuppressive medications for steroid‐sensitive nephrotic syndrome in children 2020 · Cochrane Headline outcomes only
  RR 4.18 [0.72, 24.21]
  3 studies · 214 participants
  Low