The most commonly occurring reactions are sedation, drowsiness, sweating, nausea, dry mouth and dizziness. Pain at injection site, headache, vomiting and lightheadedness occurs less frequently. Restlessness, blurred vision, chills, euphoria and impaired respiration have been infrequent.
Nubain produces few if any psychotomimetic side effects eg, visual hallucinations and dysphoria.