Published on: July 2010 Journal of Young Pharmacists, 2010; 2(3):265-268 Pharmacology | doi:10.4103/0975-1483.66806 Authors: Kirana H, Srinivasan BP1 T.V.M. College of Pharmacy, Gandhinagar, Bellary-583103, Karnataka, 1Department of Pharmacology, Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR), M.B. Road, Sector-III, Pushp Vihar, New…