1. Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
2. Department of Physiology, College of Medicine, King Saud University, Riyadh 11451, Saudi Arabia
3. Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
4. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia