1. Department of Pharmacology and Toxicology, Faculty of Pharmacy, Fayoum University, Fayoum, Egypt;
2. Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt;
3. Department of Pharmacology and Toxicology, Faculty of Medicine, Fayoum University, Fayoum, Egypt