What is metronidazole?
Metronidazole is an antibiotic that is used to treat bacterial infections of the vagina, stomach, liver, skin, joints, brain and spinal cord, lungs, heart, or bloodstream.
Metronidazole is also used to treat trichomoniasis, a sexually transmitted disease caused by a parasite. Usually both sexual partners are treated at the same time, even if one has no symptoms.
Do not use metronidazole to treat any condition that has not been checked by your doctor.
What other drugs will affect metronidazole?
Sometimes it is not safe to use certain medicines at the same time. Some drugs can affect your blood levels of other drugs you use, which may increase side effects or make the medicines less effective.
Tell your doctor about all your current medicines. Many drugs can affect metronidazole, especially:
busulfan or other cancer medicine;
heart or blood pressure medication;
lithium or other antipsychotic medicine;
medicine to treat malaria, HIV, or other infection; or
a blood thinner – warfarin, Coumadin, Jantoven.
This list is not complete and many other drugs may interact with metronidazole. This includes prescription and over-the-counter medicines, vitamins, and herbal products. Not all possible drug interactions are listed here.