Self-medication and the 'infodemic' during mandatory preventive isolation due to the COVID-19 pandemic

Aim: Quarantine due to the COVID-19 pandemic altered the supply and demand of health services. This, together with the 'infodemic' and generalized panic, could alter the patterns of self-medication in the population. The objective was to characterize the patterns of self-medication in four cities of Colombia during mandatory preventive isolation in 2020. Methods: This was a cross-sectional study done in four Colombian cities during mandatory national preventive isolation between June and September 2020. A sample of 397 adults who responded to an online survey, based on the Instrument for Systematic Data Collection for Self-medication (Instrumento de Recoleccion Sistematica de Datos pare la Automedicacion- IRIS-AM), was obtained. The use of social networks (including WhatsApp) as the source of information about medications was explored. Results: The 397 people surveyed had a median age of 31.0 years, and 58.2% were women. The prevalence of self-medication during lockdown was 34.3% (n=136). Medications targeting the nervous system (n=117; 86.0% of those participants with self-medication) and the musculoskeletal system (n=68; 50.0%) were the most commonly used. Ten (7.4%) of the self-medicated patients reported doing so to prevent COVID-19, and 15 (11.0%) named social networks as the source of information. Conclusion: More than one-third of the participants reported self-medication during COVID-19 lockdown, mainly with analgesic-type nervous system medications. People who reported self-medication to prevent COVID-19 often got their information from social networks, the Internet, and WhatsApp.