Research chemicals like PT-141 must be used only for in-vitro laboratory testing and experimentation
Blood 89 : 33453353 Flens, MJ, Izquierdo, MA, Scheffer, GL, Fritz, JM, Meijer, CJ, Scheper, RJ & Zaman, GJ (1994) Immunochemical detection of the multidrug resistance-associated protein MRP in human multidrug-resistant tumor cells by monoclonal antibodies
Zhang H, Forman HJ, Choi J
Other drugs found to inhibit vitamin B 12 absorption from food include cholestyramine (a bile acid-binding resin used in the treatment of high cholesterol), chloramphenicol and neomycin (antibiotics), and colchicine (medicine for gout treatment)