n. a powerful opioid analgesic (see opiate) used for the relief of moderate to severe pain. It acts for 6–8 hours and is administered by mouth, injection, or transdermal (skin) patches. Side-effects include drowsiness, nausea and vomiting, and constipation. Trade names: BuTrans, Temgesic, Transtec.
Subjects: Medicine and Health — Psychology.