PT - JOURNAL ARTICLE AU - N. P. Plotnikoff AU - E. Leong Way AU - H. W. Elliott TI - BIOTRANSFORMATION PRODUCTS OF MEPERIDINE EXCRETED IN THE URINE OF MAN DP - 1956 Aug 01 TA - Journal of Pharmacology and Experimental Therapeutics PG - 414--419 VI - 117 IP - 4 4099 - http://jpet.aspetjournals.org/content/117/4/414.short 4100 - http://jpet.aspetjournals.org/content/117/4/414.full SO - J Pharmacol Exp Ther1956 Aug 01; 117 AB - Employing the Brodie methyl orange and the Craig countercurrent techniques it was shown that meperidine is hydrolyzed and excreted in the urine of man as meperidinic acid and its corresponding acid conjugate. In addition, meperidine is demethylated to normeperidine which is then hydrolyzed to normeperidinic acid and partially conjugated.