title: Time course of etorphine levels in tissues of opiate tolerant and nontolerant rats.
mesh_terms: D000700:Analgesics; D000818:Animals; D001921:Brain / Q000378:metabolism; D004361:Drug Tolerance; D005048:Etorphine / Q000378:metabolism* / Q000494:pharmacology; D006801:Humans; D008297:Male; D009019:Morphinans / Q000378:metabolism*; D009021:Morphine Dependence / Q000378:metabolism; D009293:Opioid-Related Disorders / Q000378:metabolism* / Q000503:physiopathology; D051381:Rats; D013448:Sulfobromophthalein / Q000097:blood; D013997:Time Factors; D014018:Tissue Distribution
chemical_list: D000700:Analgesics; D009019:Morphinans; D013448:Sulfobromophthalein; D005048:Etorphine