• Alanoud M Aleidi, Nouf J Alayed, Htoon M Alduraibi, Najd S Alqassimi, and Amal A Ismail.
• College of Pharmacy, Qassim University, Qassim, Kingdom of Saudi Arabia. E-mail. Anouud.aleidi@gmail.com.
• Saudi Med J. 2020 Oct 1; 41 (10): 107610821076-1082.

ObjectivesTo assess phosphate binders' usage, knowledge regarding their utilization, and adherence among hemodialysis patients in Qassim, Saudi Arabia.MethodsA prospective cross-sectional study conducted at 4 dialysis centers in Qassim, Saudi Arabia with inclusion of 237 patients' undergoing hemodialysis between November 2018 to January 2019. The study involved interviewing the patients, reviewing their medical records for biomarkers used to assess kidney function, and assessing the patients' knowledge-based regarding dietary phosphate control, as well as adherence to phosphate binders' usage. Results: Out of 237 included patients, male to female ratio was 54:46. The prevalence of prescribing non- calcium phosphate binders was 82.7% whereas prescribing calcium phosphate binders was 73.8%. A total of 63% of patients showed a medium level of adherence to phosphate binders. Although adherence level was not poor, therapeutic eficacy was affected by other factors such as administration time adherence positively correlated with the serum phosphate level (p=0.00).ConclusionPhosphate binders usage is frequent among hemodialysis patients in Qassim centers. Circulating phosphate level was affected by the extent of patients' knowledge of dietary control and adherence to the usage of phosphate binders. Thus, we recommend enhancing patient education in reference to high- and low- phosphate-rich diet to take wise dietary decisions, lower pill burden, and improve adherence toward the control of hyperphosphatemia.

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