_____________________________________________________________________________________________________ *Corresponding author: E-mail: mirzatasawerbaig@gmail.com; Journal of Pharmaceutical Research International 33(44A): 213-218, 2021; Article no.JPRI.74152 ISSN: 2456-9119 (Past name: British Journal of Pharmaceutical Research, Past ISSN: 2231-2919, NLM ID: 101631759) Comparison of Prescribing Errors in Different Wards of Tertiary Care Hospital before and after Implementation of CPOE System Imran Qureshi 1 , Mirza Tasawer Baig 2* , Uzma Shahid 3 , Ambreen Huma 4 , Aisha Jabeen 5 , Muneeza Lodhi 5 , Aslam Shah 2,6 , Hirra Soomro 7 , Muhammad Asad Mehdi 2,8 and Asma Sajid 2,9 1 Dr. Ziauddin Hospital Clifton, Karachi, Pakistan. 2 Department of Pharmacy Practice, Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan. 3 Surecell Australian Stem Cell Clinic, Karachi, Pakistan. 4 Department of Pharmacognosy, Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan. 5 Department of Pharmacology, Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan. 6 The Indus Hospital, Karachi, Pakistan. 7 Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Ziauddin University, Karachi, Pakistan. 8 The Kidney Centre, Karachi, Pakistan. 9 The Agha Khan Hospital, Karimabad, Kidney Centre, Karachi, Pakistan. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JPRI/2021/v33i44A32609 Editor(s): (1) Dr. Koteshwara Mudigonda, Propharmex Company, India. Reviewers: (1) Samah Ahmed Kadhum, University of Babylon, Iraq. (2) U. S Jijith, Govt. Medical College, India. (3) Deyverson Ricardo Pereira de Souza, Clemente Faria University Hospital, Unimontes, Brazil. Complete Peer review History: https://www.sdiarticle4.com/review-history/74152 Received 06 July 2021 Accepted 16 September 2021 Published 17 September 2021 ABSTRACT Background: Medication prescribing errors were always known as inevitable errors in health care system which mainly includes physician’s writing error which then leads to wrong dispensing error. Manual Prescribing has now shifted to CPOE System that seems to be more efficient. Through this system, it is believed that quality and patient security is improved by lessening medicine and Original Research Article