Reduces the effect of oral anticoagulants (including coumarin derivatives or derivatives of indanedione), cardiac glycosides, phenothiazines, (especially chlorpromazine).
Reduces the absorption of ciprofloxacin, etidronic acid, antibiotics of the tetracycline group (forms unabsorbed complexes with oral tetracyclines), weakens the effect of streptomycin and tobramycin (laxative magnesium-containing drugs, should be taken 1-2 hours after the application of the above medicines).
Pharmaceutically compatible (precipitate formed), calcium preparations, ethanol (in high concentrations), carbonates, bicarbonates and phosphates of alkali metals, salts of arsenic acid, barium, strontium, clindamycin phosphate, hydrocortisone sodium succinate, polymyxin B sulfate, procaine hydrochloride, salicylates and tartrates .