Indomethacin reduces the effectiveness of uricosuric drugs, hypotensive and diuretics (saluretics); strengthens the effect of indirect coagulants, antiaggregants, fibrinolytics, side effects of mineralocorticosteroids, estrogens, other NSAIDs; enhances the hypoglycemic effect of sulfonylurea derivatives.
Sharing with paracetamol increases the risk of developing nephrotoxic effects.
Ethanol, colchicine, glucocorticosteroids increase the risk of developing gastrointestinal complications, accompanied by bleeding.
Increases the concentration in the blood of drugs lithium, methotrexate, digoxin and penicillins (tubular secretion blockade).
Cyclosporine, gold preparations increase the nephrotoxicity of indomethacin.
Cefamandol, cefoperazone, valproic acid increase the risk of hypoprothrombinemia and the risk of bleeding.
Potentiates the toxic effect of zidovudine.