**Author details**

Mahira Zeeshan, Mahwash Mukhtar, Qurat Ul Ain, Salman Khan and Hussain Ali\* Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan

\*Address all correspondence to: h.ali@qau.edu.pk

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
