Pharmacokinetics, metabolism and bioavailability of the new anti-allergic drug BM 113. Part II: Pharmacokinetics in primates after repeated oral or single intravenous administration.

1999 
The pharmacokinetics of BM 113 (1-(benzhydryloxyethyl)piperidino-4-ethylacetate, CAS 115313-90-1; BM 113 maleate: CAS 115313-91-2) was studied using 3 H-BM 113 in the Cynomolgus primate. Oral repeated administration of 0.75 mg/kg was performed on 8 days. 40 days after the oral treatment, a single intravenous administration of 0.4 mg/kg was done. Whatever the administration route, the radioactivity excretion was essentially urinary (about 60 %) and most of the radioactivity was excreted within the first 24 h. The faecal elimination was low, about 10% of the administered dose. 40 days after the treatment, some radioactivity was already present in the urine. For this reason, the excretion balance ranged from 70 to 83 % of the dose. The elimination half-life of 3 H-BM 113 was long, about 80 h.
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