With prolonged use of the drug due to possible resorption into the systemic circulation, hydrocortisone can reduce the effectiveness of insulin, oral hypoglycemic, antihypertensive drugs, anticoagulants, the concentration of salicylates and praziquantel in blood plasma.
The risk of side effects of hydrocortisone is increased: androgens, estrogens, oral contraceptives, anabolic steroids (hirsutism, acne); antipsychotic drugs, carbutamide, azathioprine (cataract); holinoblokatory, antihistamine medicines, tricyclic antidepressants, nitrates (glaucoma); diuretics (hypokalemia).
When used with cardiac glycosides, it is possible to develop digitalis intoxication.
Simultaneous use of lead and silver leads to mutual inactivation.