A 65-year-old man with Parkinson's disease was admitted to hospital for continuous subcutaneous infusion of levodopa/carbidopa. On day 6 of hospitalization, he developed pharyngalgia, sensation of pharyngeal constriction, and dysphagia. On day 8, blood tests showed significant elevations in potassium at 5.9 mg/dL (reference: 3.5–4.9 mg/dL), creatine kinase at 13,158 U/L (reference: 62–287 U/L), and creatinine at 6.1 mg/dL (reference: 0.6–1.0 mg/dL). Based on these results, the patient was diagnosed with rhabdomyolysis induced by subcutaneous levodopa/carbidopa infusion.
