Picker, M J <br/><br/>
Differential cross-tolerance to mu and kappa opioid agonists in morphine-tolerant rats responding under a schedule of food presentation.  [electronic resource] 

 -  Psychopharmacology  1991 
 - 129-35 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0033-3158 
<br/><br/><label>Standard No.: </label>10.1007/BF02244087  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer<br/>Animals<br/>Benzomorphans--pharmacology<br/>Chlorpromazine--pharmacology<br/>Conditioning, Operant--drug effects<br/>Dose-Response Relationship, Drug<br/>Drug Tolerance<br/>Ethylketocyclazocine--pharmacology<br/>Fentanyl--pharmacology<br/>Food<br/>Male<br/>Methadone--pharmacology<br/>Morphine--pharmacology<br/>Naloxone--pharmacology<br/>Narcotics--pharmacology<br/>Pyrrolidines--pharmacology<br/>Rats<br/>Receptors, Opioid--drug effects<br/>Receptors, Opioid, kappa<br/>Receptors, Opioid, mu<br/>Reinforcement Schedule