Analytical Chemistry Department;
Faculty of Pharmacy;
Beni-Suef University;
Hussin El-Shafey Street;
Beni-Suef City;
Egypt;
Analytical Chemistry Department;
Faculty of Pharmacy;
Cairo University;
Kasr El-Aini Street;
11562;
Cairo;
Egypt;
Nitazoxanide; Degradation; Derivative spectrophotometry; Chemometrics; TLC-densitometry; Stability-indicating methods;