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Drug Class: Commonly Known As: Category:
Anti-Infective Adult

Metronidazole - What is it for

Metronidazole is an antibiotic. It is meant to eradicate bacteria that may cause infection in the genitourinary tract and other areas.

Metronidazole - Side Effects, Precautions, and Contraindications

What side effects can Metronidazole cause?

  • Unpleasant taste in the mouth. Chew gum or snack mints.
  • Nausea, vomiting, stomach cramps, diarrhoea. If stomach discomfort occurs, take the medication with food. If side effects persist, contact your doctor.
  • Darkening of the urine. This side effect is harmless.
  • Furry tongue. Contact your doctor.

Before taking Metronidazole, what precautions must I follow?

What food or medicine must I avoid when I take Metronidazole?

Metronidazole - Dosage and How to Use

How should Metronidazole be used?

Your doctor has determined how often you or your child should take this medication. To be effective, doses of metronidazole should be taken at intervals as far apart as possible and evenly spaced. For example, if your doctor tells you or your child to take it three times a day, it is best to take one dose every eight hours.

Metronidazole comes in tablets that are to be swallowed, or in pessaries that are to be inserted into the vagina.

  • Tablets may be taken with meals or a light snack.
  • Pessaries are to be inserted into the vagina.

Be sure that you or your child take all of the doses that the doctor prescribed. Do not stop taking the drug even though symptoms of the infection disappear.

What should I do if I miss a dose?

Take the missed dose as soon as you remember it. Take any remaining doses for that day at evenly spaced intervals. Do not double the dose to make up for the missed one.

What should I do if I overdose?

Metronidazole - Handling

How should I handle Metronidazole safely?

Metronidazole - Storage

How should I store Metronidazole?

Keep away from children;#Keep in a cool, dry place, away from direct sunlight;#Store at room temperature;#Store in the container it came in.

How should I dispose of Metronidazole safely?

Metronidazole - Additional Information

It is advised not to drink alcohol while taking Metronidazole and for 2 - 3 days after finishing the course of tablets, as this may cause unpleasant side effects such as feeling sick, stomach pain, hot flushes, palpitations and headache.

Metronidazole in the form of an oral tablet is not to be used in the first trimester (3 months) of pregnancy. If you are unsure of your pregnancy status or get pregnant while on the medication, inform your doctor.

​Click here for more information on Metronidazole used as Antibiotics.

  • Updated on Monday, October 2, 2017
  • Article contributed by Pharmacy Department KK Women's and Children's Hospital

    The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

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