In patients with renal insufficiency, magnesium may accumulate leading to magnesium intoxication. Magnesium hydroxide may reduce the absorption of digoxin. Magnesium hydroxide may be used if it is taken at least 2 h before or after the digoxin. Magnesium hydroxide may be used if it is taken at least 30 minutes before or after the H2-antagonist.
Magnesium hydroxide impairs the absorption of iron.
Magnesium hydroxide may be used if it is taken at least 2 h before or after the iron. Magnesium hydroxide impairs the absorption of ketoconazole. Magnesium hydroxide may be used if it is taken at least 3 h before or after the ketoconazole. Magnesium hydroxide impairs the absorption of quinolones. Magnesium hydroxide may be used if it is taken at least 2 h before or after the quinolone.