F Ratio of toxicity and viability in HCT116 spheroids treated as indicated for 48h (NEN 1.2 µM, Domperidone (Domp), Imipramine (Imi), Desipramine (Desi) and Amitriptyline (Ami), each 30 µM; Clomipramine (Clomi) 20 µM, ISRIB 1 µM). 