A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan

© 2017 The Pharmaceutical Society of Japan. A high dietary intake of phosphorus is considered to be a significant health threat for hemodialysis (HD) patients. Prescription medications, which might be a major source of phosphorus, is largely unrecognized in Japan. However, the amount of phosphorus i...

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Main Authors: Shimoishi, K., Anraku, M., Uto, A., Iohara, D., Hirayama, F., Kadowaki, Daisuke, Zingami, S., Maruyama, T., Otagiri, Masaki
Format: Journal Article
Published: 2017
Online Access:http://hdl.handle.net/20.500.11937/72163
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author Shimoishi, K.
Anraku, M.
Uto, A.
Iohara, D.
Hirayama, F.
Kadowaki, Daisuke
Zingami, S.
Maruyama, T.
Otagiri, Masaki
author_facet Shimoishi, K.
Anraku, M.
Uto, A.
Iohara, D.
Hirayama, F.
Kadowaki, Daisuke
Zingami, S.
Maruyama, T.
Otagiri, Masaki
author_sort Shimoishi, K.
building Curtin Institutional Repository
collection Online Access
description © 2017 The Pharmaceutical Society of Japan. A high dietary intake of phosphorus is considered to be a significant health threat for hemodialysis (HD) patients. Prescription medications, which might be a major source of phosphorus, is largely unrecognized in Japan. However, the amount of phosphorus indicated on the package label, is not quantified. In this study, the phosphorus content of 22 of the most widely prescribed medications that are used in conjunction with HD therapy were examined and differences between branded and generic prescription medications were compared. All samples were selected from medications that are typically prescribed for HD patients. The samples were ground prior to analysis. Phosphorus was measured using the Wako L-Type Phosphate method. All instruments used in the study were calibrated according to the manufacturers' specifications. Amlodipine (15 mg/tablet) and paroxetine (30.0 mg/tablet) were found to contain higher contents of phosphorus than the medications tested. Differences in phosphorus content between branded and generic drugs was also determined. The phosphorus content of all generic paroxetine preparations was significantly lower than the values for identical branded medications. On the other hand, the phosphorus content of several generic amlodipine preparations were significantly different from those of similar, branded preparations. Specific information regarding the phosphorus content of prescribed medications used by HD patient needs to be made available to the dialysis community.
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spelling curtin-20.500.11937-721632018-12-13T09:34:21Z A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan Shimoishi, K. Anraku, M. Uto, A. Iohara, D. Hirayama, F. Kadowaki, Daisuke Zingami, S. Maruyama, T. Otagiri, Masaki © 2017 The Pharmaceutical Society of Japan. A high dietary intake of phosphorus is considered to be a significant health threat for hemodialysis (HD) patients. Prescription medications, which might be a major source of phosphorus, is largely unrecognized in Japan. However, the amount of phosphorus indicated on the package label, is not quantified. In this study, the phosphorus content of 22 of the most widely prescribed medications that are used in conjunction with HD therapy were examined and differences between branded and generic prescription medications were compared. All samples were selected from medications that are typically prescribed for HD patients. The samples were ground prior to analysis. Phosphorus was measured using the Wako L-Type Phosphate method. All instruments used in the study were calibrated according to the manufacturers' specifications. Amlodipine (15 mg/tablet) and paroxetine (30.0 mg/tablet) were found to contain higher contents of phosphorus than the medications tested. Differences in phosphorus content between branded and generic drugs was also determined. The phosphorus content of all generic paroxetine preparations was significantly lower than the values for identical branded medications. On the other hand, the phosphorus content of several generic amlodipine preparations were significantly different from those of similar, branded preparations. Specific information regarding the phosphorus content of prescribed medications used by HD patient needs to be made available to the dialysis community. 2017 Journal Article http://hdl.handle.net/20.500.11937/72163 10.1248/yakushi.17-00006 restricted
spellingShingle Shimoishi, K.
Anraku, M.
Uto, A.
Iohara, D.
Hirayama, F.
Kadowaki, Daisuke
Zingami, S.
Maruyama, T.
Otagiri, Masaki
A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title_full A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title_fullStr A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title_full_unstemmed A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title_short A comparison of the phosphorus content in prescription medications for hemodialysis patients in Japan
title_sort comparison of the phosphorus content in prescription medications for hemodialysis patients in japan
url http://hdl.handle.net/20.500.11937/72163