1. Department of Pharmacognosy, School of Pharmacy, College of Medicine and Health Sciences University of Gondar Gondar Ethiopia
2. Department of Clinical Pharmacy, School of Pharmacy, College of Medicine and Health Sciences University of Gondar Gondar Ethiopia
3. Department of Pharmacy, College of Health Sciences Bahir Dar University Bahir Dar Ethiopia
4. Department of Pharmacy, School of Pharmacy, College of Medicine and Health Sciences University of Gondar Gondar Ethiopia