Long-term use of magnesium hydroxide as a phosphate binder in patients on hemodialysis. 1987

P L Oe, and P Lips, and J van der Meulen, and P M de Vries, and H van Bronswijk, and A J Donker
Department of Internal Medicine, Academic Hospital Free University, Amsterdam, The Netherlands.

The long-term use of magnesium hydroxide [Mg(OH)2] as a phosphate binder was investigated in 18 patients on chronic hemodialysis. All patients received a basal treatment with oral calcium carbonate. Vitamin D supplements were not used. In period I each patient ingested aluminum hydroxide [Al(OH)3], in period II Mg(OH)2 and in period III Mg(OH)2 and Al(OH)3 together. During period II and III a dialysate devoid of Mg was used. Mg(OH)2 doses were adjusted to prevent severe hypermagnesemia and diarrhea. The mean dose of Mg(OH)2 in period II was 2.4 +/- 0.6 and in period III 2.6 +/- 1.2 g/day. Serum phosphate increased significantly in period II and fell again in period III. Despite a halving of the Al(OH)3 dose in period III, serum Al was similar in period I and period III (55.8 +/- 19.1 vs 57.1 +/- 27.3 microg/l). Parathyroid hormone (PTH) concentration fell in period II and decreased even further in period III. We conclude that oral Mg(OH)2 may reduce the required Al(OH)3 dose, however, without an effect on serum Al concentration. The observed suppression of parathyroid activity needs further study.

UI MeSH Term Description Entries
D008274 Magnesium A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.
D008276 Magnesium Hydroxide An inorganic compound that occurs in nature as the mineral brucite. It acts as an antacid with cathartic effects. Brucite,Magnesium Hydrate,Magnesium Hydroxide (Mg(OH)4),Hydrate, Magnesium,Hydroxide, Magnesium
D010710 Phosphates Inorganic salts of phosphoric acid. Inorganic Phosphate,Phosphates, Inorganic,Inorganic Phosphates,Orthophosphate,Phosphate,Phosphate, Inorganic
D006435 Renal Dialysis Therapy for the insufficient cleansing of the BLOOD by the kidneys based on dialysis and including hemodialysis, PERITONEAL DIALYSIS, and HEMODIAFILTRATION. Dialysis, Extracorporeal,Dialysis, Renal,Extracorporeal Dialysis,Hemodialysis,Dialyses, Extracorporeal,Dialyses, Renal,Extracorporeal Dialyses,Hemodialyses,Renal Dialyses
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000536 Aluminum Hydroxide A compound with many biomedical applications: as a gastric antacid, an antiperspirant, in dentifrices, as an emulsifier, as an adjuvant in bacterins and vaccines, in water purification, etc. Hydrated Alumina,Aldrox,Algeldrate,Alhydrogel,Alugel,Amphojel,Basalgel,Brasivil,Dialume,Nephrox,Pepsamer,Rocgel,Alumina, Hydrated,Hydroxide, Aluminum

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