title: Studies on dependence on tramadol in rats.
mesh_terms: D000302:Adrenal Cortex / Q000187:drug effects / Q000648:ultrastructure; D000700:Analgesics / Q000494:pharmacology; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001835:Body Weight / Q000187:drug effects; D003511:Cyclohexanols / Q000494:pharmacology; D004361:Drug Tolerance; D005260:Female; D006801:Humans; D008297:Male; D009020:Morphine / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D013375:Substance Withdrawal Syndrome / Q000503:physiopathology; D019966:Substance-Related Disorders / Q000209:etiology* / Q000503:physiopathology; D013997:Time Factors
chemical_list: D000700:Analgesics; D003511:Cyclohexanols; D009020:Morphine