The study was a randomized clinical trial and to cross over is executed. The aim of this study was to determine the efficacy of omega-3 and Cetirizine of uremic pruritus in hemodialysis patients is the quality of sleep. First, patients with uremic pruritus in dialysis centers affiliated to University of Medical Sciences anymore hemodialysis are identified and then put them in a random order 52 if you wish to participate in the design and inclusion criteria itching more than 8 weeks, the lack of skin irritation, lack of sensitivity to omega-3, a lack of malabsorption or gastrointestinal disease, such as chronic diarrhea more than 2 weeks and no anticoagulation or antiplatelet enrolled in the study and in the case of drug intolerance, kidney transplantation, use of antihistamines or gabapentin , anemia with hemoglobin less than 7 g per deciliter, PTH greater than 300 micrograms per listeria F INR, and prohibiting its use of antihistamines (blurred vision, glaucoma, etc.) are excluded. Group therapy (26) Omega-3 capsules, 1000 mg, 3 per day and Cetirizine 5 mg, 3 times a week and the control group (n = 26) standard treatment with Cetirizine 5 mg, 3 times a week for 6 weeks will. After a week of the lack of medicine, the two groups are reversed. And 6 weeks alternatives are used. The severity of itching and sleep quality 3 times (baseline and end of each phase of treatment is control.