4-((Ethyl-d5)(1-(4-methoxyphenyl)propan-2-yl)amino)butan-1-ol,4-((Ethyl-d5)(1-(4-methoxyphenyl)propan-2-yl)amino)butan-1-ol,"Labelled Mebeverine Alcohol, a metabolite of Mebeverine , an antispasmodic.;Labeled Mebeverine, intended for use as an internal standard for the quantification of Mebeverine by GC- or LC-mass spectrometry.",Mebeverine Stable Isotopes