Simultaneous use with other analgesics-antipyretics, tricyclic antidepressants, contraceptive hormonal agents and allopurinol may lead to an increase in the toxicity of metamizole sodium.
When used simultaneously with cyclosporine, the concentration of the latter in the blood decreases.
Metamizole sodium, displacing from the connection with plasma proteins, oral hypoglycemic agents, indirect anticoagulants, glucocorticosteroids and indomethacin, can cause an increase in their effect.
Phenylbutazone, barbiturates and other inducers of microsomal liver enzymes with simultaneous application can reduce the effectiveness of metamizole sodium.
Sedative and anxiolytic (tranquilizers) funds increase the analgesic effect of the drug.
Thiamazole, cytostatics and other myelotoxic drugs increase the risk of developing leukopenia.
The effect of the drug can be enhanced by simultaneous administration with codeine, H blockers2-gistaminovyh receptors and propranolol (the latter slows its inactivation).
Ethanol increases the side effects of the drug.