Despite inattention being one of the most common symptoms of Post-COVID-19 Syndrome (PCS), there is a gap in the literature regarding its treatment. This report presents a case of attentional symptoms and fatigue that emerged after the SARS-CoV-2 infection. The symptoms were similar to ADHD in adults, although the 61-year-old patient had never experienced inattention symptoms before. The patient was initially treated with Methylphenidate and then Lisdexamfetamine. Both were adapted to the needs and treatment response presented by the patient. After several changes in the therapeutic regimen, including the addition of Bupropion, the patient achieved remission of his symptoms. This case highlights the importance of treating PCS inattention and fatigue as an ADHD-like syndrome, despite the evident different etiology of symptoms. It would be necessary to replicate these findings to confirm our results, thus benefiting other patients currently affected by this syndrome.