Niperotidine
Niperotidine is a histamine antagonist selective for the H2 subtype. It was trialled as a treatment for excessive gastric acidity, but withdrawn after human trials showed liver damage.
References
↑ Palasciano G, Maggi V, Portincasa P. The effect of the H2-antagonist niperotidine on intragastric acidity in healthy subjects undergoing 24-hour pH-monitoring. Italian Journal of Gastroenterology. 1990 Oct;22(5):291-4. PMID 1983712
↑ Gasbarrini G, Gentiloni N, Febbraro S, Gasbarrini A, Di Campli C, Cesana M, Miglio F, Miglioli M, Ghinelli F, D'Ambrosi A, Amoroso P, Pacini F, Salvadori G. Acute liver injury related to the use of niperotidine. Journal of Hepatology. 1997 Sep;27(3):583-6. PMID 9314138