1. Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan;
2. Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, Karachi, Pakistan;
3. Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan