Haloperidol showed to affect MIA PaCa-2 pancreatic cancer cell viability at least in part by restoring the expression of dual-specificity phosphatase 6 (DUSP6) gene, which is a phosphatase selective for extracellular signal-regulated kinase 1/2 (ERK1/2). The gene discussed is DUSP6; the disease is familial pancreatic carcinoma.