title: Conditioning of successive adaptive responses to the initial effects of drugs.
mesh_terms: D000222:Adaptation, Physiological; D003214:Conditioning, Classical; D005246:Feedback; D006801:Humans; D008954:Models, Biological; D009892:Opium; D010600:Pharmacology; D011955:Receptors, Drug / Q000187:drug effects; D012008:Recurrence; D011984:Sensory Receptor Cells / Q000187:drug effects*; D019966:Substance-Related Disorders
chemical_list: D011955:Receptors, Drug; D009892:Opium