1. Department of Pharmacology Khyber Medical College, Peshawar, Pakistan
2. Institute of Chemistry & Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
3. H. E. J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
4. Deaprtment of Chemistry & Department of Pharamcy, University of Malakand, Chakdara, Dir (L), Pakistan
5. Swaziland Institute for Research in Traditional Medicine; Medicinal and Indigenous Food Plants, University of Swaziland, Private Bag 4, Kwaluseni, Swaziland