title: Basic mechanisms in narcotic tolerance and physical dependence.
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000187:drug effects / Q000378:metabolism; D002118:Calcium / Q000378:metabolism / Q000502:physiology; D004361:Drug Tolerance; D004723:Endorphins / Q000502:physiology; D006801:Humans; D009020:Morphine / Q000494:pharmacology; D009294:Narcotics / Q000494:pharmacology*; D012701:Serotonin / Q000502:physiology; D013375:Substance Withdrawal Syndrome / Q000503:physiopathology; D019966:Substance-Related Disorders / Q000378:metabolism / Q000503:physiopathology*; D013997:Time Factors
chemical_list: D004723:Endorphins; D009294:Narcotics; D012701:Serotonin; D009020:Morphine; D000251:Adenosine Triphosphatases; D002118:Calcium