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    Pharmacol Rep. 2005 May-Jun;57(3):380-4.

    Effect of licofelone against mechanical hyperalgesia and cold allodynia in the rat model of incisional pain.

    Singh VP, Patil CS, Kulkarni SK.

    Pharmacology Division, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160 014, India.

    Hyperalgesia from an incisional pain is evoked by noxious stimuli (mechanical and cold). The present study was aimed to examine the effect of licofelone, a dual inhibitor of cyclooxygenases (COX-1/COX-2) and 5-lipoxygenase (5-LOX) against mechanical hyperalgesia and cold allodynia in the rat model of incisional pain. Mechanical hyperalgesia and cold allodynia was assessed employing Randall and Sellitto analgesymeter and cold water maintained at 10 degrees C, respectively. Zileuton (25-100 mg/kg, po), a 5-LOX inhibitor, indomethacin (1-30 mg/kg, po), a non-selective COX inhibitor, and licofelone (10-100 mg/kg, po) a dual inhibitor, significantly reversed the mechanical hyperalgesia and also caused an increase in cold allodynia threshold with different pharmacologic profile. The rank order of potency based on ED50 values in both the paradigms was found to be licofelone > indomethacin > zileuton. The results of the present study are indicative of the role of leukotrienes along with prostaglandins in the rat model of incisional pain (a paradigm of postoperative pain). The results suggested that dual inhibition approach of simultaneous inhibition of COX and LOX pathways might prove beneficial in combating hyperalgesia of postoperative pain.

    PMID: 15985722 [PubMed - indexed for MEDLINE]

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    • Indomethacin (Indocin®)

      Indomethacin is used to relieve moderate to severe pain, tenderness, swelling, and stiffness caused by osteoarthritis (arthritis caused by a breakdown of the lining of the joints), rheumatoid arthritis (arthritis caused ...

    • Hydroxyurea (Droxia®, Hydrea®)

      Your doctor has ordered hydroxyurea to help treat your illness. Hydroxyurea comes as a capsule to take by mouth.

    • Zileuton (Zyflo CR®)

      Zileuton is used to prevent difficulty breathing, chest tightness, wheezing, and coughing due to asthma. Zileuton is not used to treat an asthma attack (sudden episode of shortness of breath, wheezing, and coughing) that...