Add time:07/12/2019         Source:sciencedirect.com

Elimination and metabolic profiles of the O-glucuronide conjugated products of pyrilamine and their nonconjugated O-dealkylated and N-desmethyl pyrilamine products were determined after the oral administration of (14C)-PYRILAMINE MALEATE (cas 59-33-6) to Fischer 344 rats, B6C3F1 mice and female rhesus monkeys by stomach tube or i.v. The total cumulative urinary and fecal pyrilamine products were determined. The conjugated pyrilamine metabolites, isolated and identified were the glucuronide products of O-dealkylated pyrilamine and ring-hydroxylated pyrilamine, and the nonconjugated metabolites were predominately the N-desmethylpyrilamine and O-dealkylated pyrilamine and their ring-hydroxylated products. Statistically significant differences were observed in the percentages of the conjugated and nonconjugated metabolites of pyrilamine excreted by the three species studied.

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