Subcutaneous Induration Induced by Haloperidol with Hydromorphone Citrate: A Case Report

ABSTRACT

We report that the discontinuation of haloperidol during subcutaneous infusion therapy with hydromorphone citrate led to the improvement of subcutaneous induration. A 70-year-old female was admitted to our palliative care unit with neck pain. She had neck lymph node metastasis from carcinoma of unknown origin. As subcutaneous infusion of hydromorphone citrate caused nausea, we administered haloperidol with hydromorphone citrate in normal saline. The infusion sites after 4, 9, and 11 days were changed because of subcutaneous induration, which we considered to be caused by haloperidol. After discontinuation of haloperidol, induration at the infusion site was not observed.