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You are here : 3-RX.com > Drugs & Medications > Detailed Drug Information (USP DI) > Metronidazole : Before Using

Metronidazole (Vaginal)

Brand Names : Flagyl, Nidagel, MetroGel-Vaginal

Metronidazole | Before Using | Proper Use | Precautions | Side Effects

Before Using This Medicine

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 metronidazole. Also tell your health care professional if you are allergic to any other substances, such as foods, preservatives, or dyes.

Pregnancy - Vaginal metronidazole has not been studied in pregnant women. Metronidazole given by mouth (e.g., Flagyl) has not been shown to cause birth defects. Before taking this medicine, make sure your doctor knows if you are pregnant or if you may become pregnant.

Breast-feeding - Use is not recommended in nursing mothers since metronidazole passes into breast milk and may cause unwanted effects in the baby. In addition, metronidazole may change the taste of your breast milk. Your doctor may want you to stop breast-feeding and use this medicine for a short time. During this time the breast milk should be pumped or drawn out with a breast pump and thrown away. Two days after you finish using this medicine, you may go back to breast-feeding.

Children - 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.

Older adults - 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.

Other medicines - Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are using vaginal metronidazole it is especially important that your health care professional know if you are taking any of the following:

  • Alcohol or alcohol-containing medicines (e.g., NyQuil, Geritol) - Metronidazole can cause serious side effects such as abdominal cramping, flushing, headache, nausea, or vomiting when it is used with alcohol
  • Anticoagulants (blood thinners) - Taking metronidazole may increase the effects of anticoagulants, changing the amount you need to take
  • Disulfiram (e.g., Antabuse) - Severe confusion or mental problems can occur if metronidazole is used together with disulfiram or if it is used up to 2 weeks after disulfiram treatment has been stopped

Other medical problems - The presence of other medical problems may affect the use of vaginal metronidazole. 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

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Metronidazole: Description and Brand Names

 

Metronidazole: Proper Use



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