The ANO1 inhibitor, niclosamide, approved by the Food and Drug Administration, effectively suppressed cyst growth by blocking Cl− current and inhibiting ANO1 expression.[59] Cyst‐induced kidney organoids treated with forskolin for 48 h were treated with niclosamide for an additional 24 h, and cyst growth was monitored by microscopy (Figure 7A). This evidence concerns the gene ANO1 and cyst.