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Before Using
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
In deciding whether to use a medicine, the risks of using the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For vaginal metronidazole, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Studies on these medicines have been done only in adult patients, and there is no specific information comparing use of vaginal metronidazole in children with use in other age groups.
Geriatric
Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults or if they cause different side effects or problems in older people. There is no specific information comparing use of metronidazole in the elderly with use in other age groups.
Pregnancy
| Pregnancy Category | Explanation | |
|---|---|---|
| All Trimesters | B | Animal studies have revealed no evidence of harm to the fetus, however, there are no adequate studies in pregnant women OR animal studies have shown an adverse effect, but adequate studies in pregnant women have failed to demonstrate a risk to the fetus. |
Breastfeeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Drug Interactions
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Amprenavir
- Dihydroergotamine
- Disulfiram
- Ergoloid Mesylates
- Ergonovine
- Ergotamine
- Methylergonovine
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Amiodarone
- Busulfan
- Fluorouracil
- Mycophenolate Mofetil
- Warfarin
Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Carbamazepine
- Cholestyramine
- Cyclosporine
- Lithium
- Milk Thistle
- Tacrolimus
Other Interactions
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following is usually not recommended, but may be unavoidable in some cases. If used together, your doctor may change the dose or how often you use this medicine, or give you special instructions about the use of food, alcohol, or tobacco.
- Ethanol
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Central nervous system (CNS) disease, including epilepsy—Metronidazole may increase the chance of seizures (convulsions) or other side effects
- Liver disease, severe—Patients with severe liver disease may have an increase in side effects
- Low white blood cell count (or history of)—Metronidazole may make the condition worse
