[Market surveillance and control of substandard, falsified and unregistered medicines: integrative reviewVigilancia y control de medicamentos subestándar, falsificados y no registrados: una revisión integral].

Objective: To identify the strategies employed by regulatory systems for the market surveillance and control of substandard, falsified, and unregistered medicines at the regional-global levels, especially regarding drug recall procedures. Method: An integrative literature review was performed. Searches were performed in MEDLINE via PubMed, Embase, and SciELO to select articles published from 2007 to 2019 in English, Portuguese, and Spanish, covering national regulatory system initiatives, with a focus on the recall of substandard, falsified, and unregistered medicines. Results: Of 483 articles initially identified, 21 global, regional, or national scope studies were selected. Prevention, detection, and response strategies, including drug recall, were grouped according to two broad market surveillance and control models (passive-reactive and proactive) used by regulatory systems. These models seem to combine passive and proactive, complementary or concurring actions that varied according to country development level and regulatory capacity. Although considered the most effective response for protection of populations, medicine recall was not implemented in a uniform manner in different regulatory systems as indicated by the studies. Conclusions: Addressing the complexity and magnitude of the problem of substandard, falsified, and unregistered medicines will demand effort, investment, and profound changes in the approaches, processes, and capacity of regulatory systems, with market surveillance and control strategies possibly converging toward a hybrid, multisectoral, multidisciplinary, global, and systemic model of human health protection.