Systematic review: hypomagnesaemia induced by proton pump inhibition.

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Systematic review: hypomagnesaemia induced by proton pump inhibition.

Aliment Pharmacol Ther. 2012 Jul 4;

Authors: Hess MW, Hoenderop JG, Bindels RJ, Drenth JP


BACKGROUND: Proton pump inhibitors (PPIs) are a mainstay therapy for all gastric acid-related diseases. Clinical concerns arise from a small but growing number of case reports presenting PPI-induced hypomagnesaemia (PPIH) as a consequence of long-term PPI use. Current opinion is that reduced intestinal magnesium absorption might be involved, but nothing is known on the molecular mechanism underlying PPIH. AIM: To investigate whether or not PPIH is a true, long-term drug-class effect of all PPIs and to scrutinise a possible role of comorbidity in its aetiology. Therefore, the primary objective in particular was to investigate serum magnesium dynamics in trials drug withdrawal and re-challenge. The secondary objective was to profile the 'patient at risk'. METHODS: We reviewed systematically all currently available case reports on the subject and performed a statistical analysis on extracted data. RESULTS: Proton pump inhibitor-induced hypomagnesaemia PPIH is a drug-class effect and occurred after 5.5àyears (median) of PPI use, onset was broad and ranged from 14àdays to 13àyears. Discontinuation of PPIs resulted in fast recovery from PPIH in 4àdays and re-challenge led to reoccurrence within 4àdays. Histamine-2-receptor antagonists were the preferable replacement therapy in PPIH and prevented reoccurrence of hypomagnesaemia. In PPIH no specific risk profile was identified that was linked to the hypomagnesaemia. CONCLUSION: The cases of PPIH show severe symptoms of magnesium depletion and identification of its causation was only possible through withdrawal of the PPI. Clinical awareness of PPIH is key to avoid putting patients at risk.

PMID: 22762246 [PubMed - as supplied by publisher]

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