Despite the implementation of pharmacovigilance centers in developing countries and the institution of Therapeutic Committees at different healthcare delivery levels, the use of official medicine safety surveillance tools among healthcare workers is not widespread. In order to provide evidence on the knowledge and practice of healthcare professionals in the public sector on the use of medicine safety reporting tools, a cross‐sectional survey using a self‐administered questionnaire to assess the use of medicine safety surveillance tools amongst healthcare workers in Eenhana State Hospital was carried out. Data from the questionnaires were entered into the statistical package Epi Info® version 7 for analysis. About fifty percent of the healthcare workers in this study have identified at least one adverse drug reaction (ADR) in their professional practice. In contrast, only 29% reported ADR using at least one officially prescribed medicine safety reporting tool. The nursing cadre seems to have the least knowledge of medicine safety surveillance tools and pharmacovigilance practice. Pre-registration healthcare workers and continuing professional training for registered healthcare workers must be strengthened to encourage the use of medicines safety surveillance tools, in particular, and pharmacovigilance, in general.