Racecadotril-d₅is intended for use as an internal standard for the quantification of racecadotril by GC- or LC-MS. Racecadotril is a prodrug form of the neprilysin (NEP) inhibitor thiorphan .^1,2In vivo, racecadotril reduces or prevents castor oil-induced diarrhea without delaying intestinal transit in rats when administered at doses of 80 or 100 mg/kg, respectively.¹It also decreases the duration of diarrhea and increases body weight gain in a neonatal gnotobiotic pig model of human rotavirus-induced diarrhea.²Formulations containing racecadotril have been used in the treatment of acute diarrhea.

1.Griggs, D.W., Prinsen, M.J., Oliva, J., et al.Pharmacologic comparison of clinical neutral endopeptidase inhibitors in a rat model of acute secretory diarrheaJ. Pharmacol. Exp. Ther.357(2)423-431(2016) 2.Bui, T., Li, G., Kim, I., et al.Effects of racecadotril on weight loss and diarrhea due to human rotavirus in neonatal gnotobiotic pigs (Sus scrofa domesticus)Comp. Med.67(2)157-164(2017)