| Employment | Date | Status |
|---|
| Kwame Nkrumah University of Science and Technology | Aug 2020 | current |
| Kwame Nkrumah University of Science and Technology | 2018-Jul 2020 | past |
| Kwme Nkrumah University of Science and Technology | 2020 | current |
| Kwame Nkrumah University of Science and Technology | 2014- 2020 | past |
| Faculty of Pharmacy, Madonna University Elele, Port Harcourt, Nigeria. | 2014 | current |
| College of Health Sciences, KNUST, in the absence of the Provost of the College. | 2018- 2017 | past |
| Faculty of Pharmacy and Pharmaceutical Sciences, KNUST | 2017- 2018 | past |
| Faculty of Pharmacy and Pharmaceutical Sciences, KNUST | 2016- 2017 | past |
| Faculty of Pharmacy and Pharmaceutical Sciences, KNUST | 2016- | past |
| Department of Pharmaceutical and Biological Chemistry, University College of London, School of Pharmacy, United Kingdom | 2012- | past |
| Department of Pharmacognosy, Faculty of Pharmacy and Pharmaceutical Sciences, KNUST | 2010- 2013 | past |
| Department of Pharmacognosy, Faculty of Pharmacy & Pharmaceutical Sciences, KNUST | 2009- 2014 | past |
| of Pharmacognosy to the Faculty of Pharmacy, Madonna University Elele, Port Harcourt, Nigeria | 2009- 2014 | past |
| Department of Herbal Medicine, Faculty of Pharmacy & Pharmaceutical Sciences, KNUST | 2008 | current |
| Department of Pharmacognosy, Faculty of Pharmacy & Pharmaceutical Sciences, KNUST | 2000- 2008 | past |
| Department of Pharmacognosy, Faculty of Pharmacy & Pharmaceutical Sciences, KNUST | 2000 | current |
| Department of Pharmaceutical Microbiology, King’s College London, University of London, United Kingdom | 2005- 2007 | past |
| Department of Pharmacognosy, Faculty of Pharmacy & Pharmaceutical Sciences, KNUST | 1996 | current |
