Metronidazole (Vaginal)

Brand Names : Flagyl, Nidagel, MetroGel-Vaginal

Side Effects of This Medicine

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor as soon as possible if any of the following side effects occur:

More common

Itching in the vagina; pain during sexual intercourse; thick, white vaginal discharge with no odor or with a mild odor

Less common

Abdominal or stomach cramping or pain; burning or irritation of penis of sexual partner; burning on urination or need to urinate more often; itching, stinging or redness of the genital area

Other side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. However, check with your doctor if any of the following side effects continue or are bothersome:

Less common

Diarrhea; dizziness or lightheadedness; dryness of mouth; headache; feeling of a furry tongue; loss of appetite; metallic taste or other change in taste sensation; nausea; vomiting

Metronidazole may cause your urine to become dark. This is harmless and will go away when you stop using this medicine.

After you stop using this medicine, your body may need time to adjust. The length of time this takes depends on the amount of medicine you were using and how long you used it. During this period of time check with your doctor if you notice any of the following side effects:

Any vaginal or genital irritation or itching; pain during sexual intercourse; thick, white vaginal discharge not present before treatment, with no odor or with a mild odor

Other side effects not listed above may also occur in some patients. If you notice any other effects, check with your doctor.