title: Down regulation of opiate receptor in rat brain after chronic etorphine treatment.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects*; D004174:Diprenorphine / Q000494:pharmacology; D005048:Etorphine / Q000494:pharmacology*; D009019:Morphinans / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D011957:Receptors, Opioid / Q000187:drug effects*; D013997:Time Factors
chemical_list: D009019:Morphinans; D011957:Receptors, Opioid; D004174:Diprenorphine; D005048:Etorphine