A 38-year-old patient with left forefoot amputation due to arteriopathy due to Buerger's disease.
In January 2008, Durogesic® 100 μg/h plus transmucosal fentanyl 400 μg of rescue was prescribed due to pain in the affected side of the visual analog scale (VAS).
In one of the medical prescriptions of this drug, another brand of commercial brand was released in a pharmacy in September 2008, after which it started at 4 h with pain 7/10 in the VAS, increasing nausea and vomiting for months without treatment with fentanyl.
Two days later the patient was prescribed Durogesic® 100 μg/h, with favorable resolution of the pain pathology of the patient.
