“…The application of FDA-approved drugs for cancer treatment has been a hotspot for studying pharmacokinetics, establishing safety in humans, and evaluating toxicity 31 , 32 . Consequently, it may be an intriguing strategy to utilize FDA-approved drugs for ESCC treatment, and several drugs have been demonstrated to have anti-cancer effect in ESCC, such as dasabuvir 48 (for hepatitis C virus treatment), azelnidipine 49 (for hypertension), penfluridol 50 (an antipsychotic drug), and antitussive 51 (an antitussive agent). In this study, we identified an FDA-approved drug, dexrazoxane, as a potential anti-cancer drug for ESCC both in vitro and in vivo.…”