Reduces the antibacterial activity of sulfonamides.
Amantadine and quinidine enhance the effect of Bellastesin.
When used simultaneously with opioid analgesics and drugs that depress the central nervous system,possible dangerous oppression of the central nervous system; with haloperidol and organic nitrates - increased intraocular pressure; with glucocorticosteroids for systemic use - reduces the effect of corticosteroids and possibly increases insideocular pressure; with M-holinoblokatorami - increased anticholinergic effect; with furosemide - orthostatic hypotension is possible.
Reserpine, monoamine oxidase inhibitors, guanethidine, antacid agents, ascorbic acid, attapulgite reduce the effect of Bellastesin.
With simultaneous use with antihistamines, the antihistamine effect increases; with blockers of P-adrenoreceptors - the effect of the latter decreases; with hormonal contraceptives - the contraceptive effect decreases; with nonselective inhibitors of the reverse neuronal capture of monoamines - the sedative effect is enhanced.
Reduces the effect of non-steroidal anti-inflammatory drugs, griseofulvin, digitoxin, doxycycline, ketoconazole, metoclopramide, metronidazole; increases the effect of indapamide, nizatidine.
With simultaneous use with drugs containing potassium, the formation of ulcers in the intestine.