[1] Russak EM, et al. Impact of Deuterium Substitution on the Pharmacokinetics of Pharmaceuticals. Ann Pharmacother. 2019;53(2):211-216. DOI:
10.1177/1060028018797110[2] BUSH IE, et al. The excretion of allo tetrahydrocortisol in human urine. Biochem J. 1957 Dec;67(4):689-700. DOI:
10.1042/bj0670689[3] Kosicka K, et al. Detailed analysis of cortisol, cortisone and their tetrahydro- and allo-tetrahydrometabolites in human urine by LC-MS/MS. J Pharm Biomed Anal. 2017 Jun 5;140:174-181. DOI:
10.1016/j.jpba.2017.03.039