1. Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, KSA;
2. Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy, Al-Azhar University, Assiut, Egypt;
3. Department of Pharmaceutics, College of Pharmacy, Assiut University, Assiut, Egypt;
4. Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh, KSA