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Influence of piperine on ibuprofen induced antinociception and its pharmacokinetics
Sama Venkatesh1, Kovvuru Devi Durga, Yenumula Padmavathi
1G. Pulla Reddy College of Pharmacy, Mehdipatnam, Hyderabad, India. venkateshsama@hotmail.com
Abstract:
Piperine (CAS 94-62-2), an alkaloid obtained from Piper nigrum and P. longum, is a known inhibitor of various enzymes (CYP isozymes) responsible for biotransformation of drugs. By inhibiting the metabolism of drugs, piperine improves the bioavailability of drugs. In the present study piperine (10 mg/kg) significantly increased the dose-dependent antinociceptive activity of ibuprofen evaluated by both acetic acid writhing and formalin test, when it was administered with ibuprofen. Ibuprofen plasma concentration was also increased when it was administered with piperine. The synergistic antinociception activity of ibuprofen when administered with piperine can be attributed to increased plasma concentration of ibuprofen. From this study it can be concluded that piperine can be used as a bioenhancer along with ibuprofen.
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