Drug-Drug Interactions: METRONIDAZOLE+TETRACYCLINE may interact with penicillin antibiotics, medicines to treat acne (acitretin, isotretinoin, and tretinoin), oral contraceptives, blood thinner (warfarin), water pills, medicines used to treat diarrhea (kaolin-pectin and bismuth subsalicylate), medicines used to treat diabetes (insulin, glibenclamide, and gliclazide), medicines that cause liver damage, anesthetic (methoxyflurane), a medicine used to treat pneumonia (atovaquone), antacids, a medicine used to treat ulcers (sucralfate), an antidepressant (lithium), a medicine used to treat heart disease (digoxin), a medicine used to treat osteoporosis (strontium ranelate), anticancer agent (5-fluorouracil), medicines used to treat high cholesterol (colestipol and cholestyramine), a medicine used to treat fits (phenobarbital and phenytoin), medicine that suppress the immune system (cyclosporine), a medicine used to treat alcoholism (disulfiram), and medicines used to treat migraine (ergotamine and methysergide).
Drug-Food Interactions: Do not take alcohol while using METRONIDAZOLE+TETRACYCLINE as it may increase the risk of side-effects. Do not take dairy products while using this medicine.
Drug-Disease Interactions: METRONIDAZOLE+TETRACYCLINE should be used with caution in patients with liver or kidney problems, myasthenia gravis (a muscle disorder), and problems with the nervous system.