Comparison of early gastrointestinal tract and liver toxicity of the originator iron polymaltose complex (IPC) and an IPC similar preparation in non-anemic rats

International Journal of Clinical Pharmacology and Therapeutics
Jorge E ToblliMargarita Angerosa

Abstract

The originator iron polymaltose complex (Maltofer®, IPC, Vifor International, St. Gallen, Switzerland) has been used for over 30 years to treat iron deficiency anemia. Its physico-chemical properties allow for a controlled release of iron, a property which translates into low toxicity and good gastrointestinal (GI) tolerability of the drug compared to the commonly used ferrous salts. A variety of different iron polymaltose complex similars are commercially available with varying structures and, thus, different efficacy and toxicity compared to IPC. In this study, the median lethal dose, the GI tract and liver toxicity of an IPC similar (Vitalix®, IPCSVITA, Laboratorios Roemmers, Buenos Aires, Argentina) were compared with those of IPC in healthy rats. The median lethal dose of IPCSVITA was determined as the dose required to kill 6 out of 12 rats after 24 h from dosing. To compare the GI and liver toxicities, rats received IPCSVITA or IPC (both 280 mg iron/kg body weight) for 28 days. GI toxicity was assessed macroscopically by scoring lesion severities and microscopically by analyzing the villi/crypt ratio, number of eosinophils/villi and number of Goblet cells/villi. Ferritin was assessed in the small intestine villi and in th...Continue Reading

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