1. Department of Pharmacology, Faculty of Medicine; Rabigh, King Abdulaziz University (KAU); Jeddah 21589 Saudi Arabia
2. Department of Pharmacology, Faculty of Medicine; Ain Shams University; Cairo 11562 Egypt
3. Department of Natural Products, Faculty of Pharmacy; King Abdulaziz University (KAU); Jeddah 21589 Saudi Arabia
4. Department of Pharmacognosy, Faculty of Pharmacy; Cairo University; Cairo 11562 Egypt