Osvaldo Melgarejo, MSc, is affiliated with the Department of Psychiatry at the School of Medical Sciences, Universidad Nacional de Asunción in Paraguay. His publications focus on addiction, including clinical presentations related to polysubstance use and the implications of cocaine-induced symptoms for primary care providers. He has contributed to Psychiatrist.com between 2022 and 2025, often collaborating with Iván Barrios, Julio Torales, Marcelo O’Higgins, Antonio Ventriglio, and Diana Kunihiro.
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