Case Presentation: A 58-year-old man presented with two days of confusion, tremors and seizures. Past medical history included schizophrenia, epilepsy, HCV infection and right hemiparesis due to ischemic strokes. He initiated dasabuvir, ombitasvir, paritaprevir and ritonavir (Viekira Pak) three days earlier. His epilepsy had been well controlled on lamotrigine for years. Review of systems was [...]