1. Department of Pharmaceutics College of Pharmacy King Saud University, P.O. Box 2457 Riyadh 11451, Saudi Arabia/Department of Pharmaceutical Organic Chemistry Faculty of Pharmacy Assiut University, Assiut-71527, Egypt
2. Department of Pharmacognosy College of Pharmacy King Saud University, Riyadh P.O. 2457, Riyadh 11451, Saudi Arabia/Department of Drug Radiation Research, National Centre For Radiation Research and Technology Atomic Energy Authority P.O. Box 29, Nasr City, Cairo, Egypt
3. Department of Pharmacognosy College of Pharmacy King Saud University, Riyadh P.O. 2457, Riyadh 11451, Saudi Arabia
4. Department of Pharmaceutics College of Pharmacy King Saud University, P.O. Box 2457 Riyadh 11451, Saudi Arabia