Synergism Between Fentanyl and Tramadol in Tonic Inflammatory Pain: the Orofacial Formalin Test

Analysis of the opioid–opioid combinations according to the nociceptive stimulus in mice

(2010) Asunción Romero et al.   PHARMACOLOGICAL RESEARCH

Antinociceptive effects of morphine, fentanyl, tramadol and their combination, in morphine-tolerant mice

(2010) Asunción Romero et al.   PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR

Peripheral mechanisms of pain and analgesia

(2009) Christoph Stein et al.   BRAIN RESEARCH REVIEWS

Effects of tramadol and dexketoprofen on analgesia and gastrointestinal transit in mice

(2009) H.F. Miranda et al.   FUNDAMENTAL & CLINICAL PHARMACOLOGY

Synergism between NSAIDs in the orofacial formalin test in mice

(2009) H.F. Miranda et al.   PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR

The analgesic efficacy of fentanyl: Relationship to tolerance and μ-opioid receptor regulation

(2008) S SIROHI et al.   PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR

The novel compound (±)-1-[10-((E)-3-Phenyl-allyl)-3,10-diaza-bicyclo[4.3.1]dec-3-yl]-propan-1-one (NS7051) attenuates nociceptive transmission in animal models of experimental pain; a pharmacological comparison with the combined μ-opioid receptor agonist and monoamine reuptake inhibitor tramadol

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