The dispositional kinetics of phencyclidine and its N-ethylamine analogue in rats.
The uptake kinetics of [3H]-labelled phencyclidine (PCP) and N-ethyl-l-phenycyclohexylamine (PCE) in rats, measured in terms of decreases in the blood concentrations of the drugs after i.v. administration of a single 1.09 mumol dose, were not significantly different. Within a week of administration, the rats excreted about 93% of the [3H]-PCP and about 65% of [3H]-PCE via their urine and faeces; their urine contained nore [3H], mainly as metabolites of [3H]-PCP and of [3H]-PCE, than their faeces. Similarly, more [3H] remained in the tissues of rats treated with [3H]-PCE than in the tissues of [3H4-PCP-treated rats. The fact that PCE is metabolized and excreted more slowly than PCP may account for the higher psychotropic effects of PCE.
D000818:Animals; D003514:Cyclohexylamines / Q000097:blood / Q000378:metabolism* / Q000652:urine; D005243:Feces / Q000032:analysis; D007700:Kinetics; D008297:Male; D010622:Phencyclidine / Q000097:blood / Q000378:metabolism* / Q000652:urine; D051381:Rats; D011919:Rats, Inbred Strains; D014018:Tissue Distribution
D003514:Cyclohexylamines; D010622:Phencyclidine; C023851:N-ethyl-1-phenylcyclohexylamine