[Ambroxol, studies of biotransformation in man and determination in biological samples (author's transl)].

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Jauch R, Bozler G, Hammer R, Koss FW, Karlsson M, Vitek E, Haring I, Beschke K, Hadamovsky S, Maass D, Wollmann R

[Ambroxol, studies of biotransformation in man and determination in biological samples (author's transl)].

Arzneimittelforschung. 1978;28(5a):904-11.

PubMed ID
581989 [ View in PubMed
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Abstract

15 mg trans-4-[2-amino-3,5-dibromo-benzyl)-amino]-cyclohexanol-hydrochloride (ambroxol, NA 872) was administered i.v. and orally to healthy volunteers. The metabolic pattern in urine and plasma was similar for both routes of administration. Biotransformation reactions are straightforward, yielding two major products of phage I reactions identified as 6,8-dibromo-3-(trans-4-hydroxycyclohexyl)-1,2,3,4-tetrahydro-quinazoline and 3,5-dibromo-anthranilic acid. These metabolites as well as the parent compound are also converted to conjugates, predominantly glucuronides. Quantification of unlabelled ambroxol in biological fluids is achieved by radiochemical derivatisation with 14C-labelled formaldehyde in imitation of the biotransformation.

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