Janakiraman, Kunchithapatham, and Rajappan Manavalan. 2008. “STUDIES ON EFFECT OF PIPERINE ON ORAL BIOAVAILABILITY OF AMPICILLIN AND NORFLOXACIN”. African Journal of Traditional, Complementary and Alternative Medicines 5 (3):257-62. https://journals.athmsi.org/index.php/ajtcam/article/view/284.