“…Moreover, nalbuphine was shown to be ineffective in the treatment of postoperative opioid-induced pruritus in paediatric patients (149), The usage of 5-HT3 receptor antagonists (ondansetron, dolasetron) remains controversial. Some authors reported good efficacy (123,141,(150)(151)(152) while others denied it (153)(154)(155). In addition, antihistaminics, droperidol, propofol, alizapride, tenoxicam and diclofenac have been tried with various success (116,124,141,156).…”