title: Increased amphetamine potency following chronic naltrexone administration in rats.
mesh_terms: D000818:Animals; D001058:Apomorphine / Q000494:pharmacology; D003913:Dextroamphetamine / Q000494:pharmacology*; D004357:Drug Synergism; D008297:Male; D009043:Motor Activity / Q000187:drug effects*; D009270:Naloxone / Q000031:analogs & derivatives*; D009271:Naltrexone / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors
chemical_list: D009270:Naloxone; D009271:Naltrexone; D001058:Apomorphine; D003913:Dextroamphetamine