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Magnesium supplement

Magnesium glycerophosphate

Brand names: Neomag

Adult dose

Dose: 4–24 mmol/day in divided doses
Route: PO
Frequency: divided

Clinical pearls

  • Better tolerated than magnesium oxide / aspartate for chronic supplementation

Contraindications

  • Severe renal impairment
  • Hypermagnesaemia

Side effects

  • Diarrhoea
  • Hypermagnesaemia

Interactions

  • Tetracyclines/quinolones (chelation)

Monitoring

  • Serum Mg

Reference: BNF; https://bnf.nice.org.uk/drugs/magnesium-glycerophosphate/. Verify against your local formulary and the latest BNF before prescribing.

Related

Curated clinical cross-links plus same-class fallbacks.