“…The prevalence of nephrogenic pruritus has ranged from 26.7 to 65.17% in various studies. 2,4,8,9 The factors implicated in the pathogenesis of nephrogenic pruritus include integumentary changes related to xerosis, chemical neurotransmitters including enkephalins, pentapeptide and serotonin, microinflammation with elevated Th 1 lymphocytes, diavalent ions such as calcium and phosphorus, parathyroid hormone, opioid peptides and mast cell proliferation with elevated histamine. 4,[10][11][12][13] Nephrogenic pruritus is refractory to treatment but may respond to emollients, topical calcineurin inhibitors, UVB phototherapy, gabapentin, the opioid antagonist naltrexone and parathyroidectomy.…”