Incompatible with drugs containing SH-group: bismuth colloidal citrate, calcium phosphate, chloramphenicol, colestramine, colestipol, tetracyclines, pancreatin, zinc salts can reduce the effectiveness of the drug.
Ascorbic acid increases the absorption of iron ions.
The drug may reduce the effectiveness of quinolones, levodopa, levothyroxine, methyldopa, tetracyclines, penicillin, sulfasalazine, and zinc salts.
Simultaneous use of iron salts and allopurinol should be avoided.
Food, mainly milk and its products, as well as eggs, reduce the absorption of the drug.