Pharmacodynamic: a joint application with potassium-sparing diuretics (triamterene, spironolactone), beta-adrenoblockers, cyclosporine, heparin, ACE inhibitors, non-steroidal anti-inflammatory drugs increases the risk of hyperkalemia up to the development of arrhythmia and asystole.
The use of potassium preparations together with glucocorticosteroids eliminates the hypokalemia caused by the latter. Under the influence of K +, undesirable effects of cardiac glycosides decrease.
Mg2+ reduce the effect of neomycin, polymyxin B, tetracycline and streptomycin. Anesthetics increase the oppressive effect of magnesium preparations on the central nervous system; when applied simultaneously with atrakuronium, decamethonium, succinyl chloride and suxamethonium, neuromuscular blockade may be enhanced; calcitriol increases the content of magnesium in the blood plasma; Calcium preparations reduce the effect of magnesium preparations.
Pharmacokinetic: astringent and enveloping agents reduce the absorption of the drug in the gastrointestinal tract.