Metronidazole (Oral Route)

Free

E-newsletter

Subscribe to Housecall

Our weekly general interest
e-newsletter keeps you up to date on a wide variety of health topics.

Side Effects

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 immediately if any of the following side effects occur:

• Agitation
• Back pain
• Blindness
• Blurred vision
• Burning, numbness, tingling, or painful sensations in the hands or feet
• Changes in speech patterns
• Confusion
• Convulsions
• Decreased vision
• Depression
• Dizziness
• Drowsiness
• Eye pain
• Fever
• Hallucinations
• Headache
• Irritability
• Lack of coordination
• Mood or mental changes
• Nausea
• Seizures
• Shakiness and unsteady walk
• Slurred speech
• Stiff neck or back
• Trouble with speaking
• Unsteadiness, trembling, or other problems with muscle control or coordination
• Unusual tiredness or weakness
• Vomiting
• Weakness in the arms, hands, legs, or feet

• Black, tarry stools
• Blood in the urine or stools
• Body aches or pain
• Chills
• Clumsiness or unsteadiness
• Difficulty with breathing
• Ear congestion
• Feeling of pelvic pressure
• Frequent or painful urination
• Loss of voice
• Nasal congestion
• Pinpoint red spots on the skin
• Runny nose
• Skin rash, hives, redness, or itching
• Sneezing
• Stomach and back pain (severe)
• Unusual bleeding or bruising
• Vaginal irritation, discharge, or dryness not present before taking the medicine

• Bleeding gums
• Bloating
• Chest pain
• Constipation
• Cough
• Dark-colored urine
• Fast heartbeat
• Indigestion
• Loss of appetite
• Painful or difficult urination
• Pains in the stomach, side, or abdomen, possibly radiating to the back
• Shortness of breath
• Sore throat
• Sores, ulcers, or white spots on the lips or in the mouth
• Swollen glands
• Yellow eyes or skin

• Blistering, peeling, or loosening of the skin
• Bloody or cloudy urine
• Burning while urinating
• Continuing diarrhea
• Continuing stomach pain
• Diarrhea
• Feeling of warmth
• Increased volume of pale, dilute urine
• Joint or muscle pain
• Loss of bladder control
• Red irritated eyes
• Red skin lesions, often with a purple center
• Redness of the face, neck, arms, and occasionally, upper chest
• Redness of the skin

Some 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. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

• Abdominal or stomach cramps
• Dizziness or lightheadedness
• Feeling of constant movement of self or surroundings
• Heartburn
• Sensation of spinning
• Sleeplessness
• Trouble sleeping
• Unable to sleep
• Weight loss

• Change in taste sensation
• Congestion
• Dry mouth
• Pain or tenderness around the eyes and cheekbones
• Stuffy nose
• Tender, swollen glands in the neck
• Trouble with swallowing
• Unpleasant or sharp metallic taste
• Voice changes

• Decreased interest in sexual intercourse
• Inability to have or keep an erection
• Loss in sexual ability, desire, drive, or performance
• Painful sexual intercourse

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

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Copyright © 2013 Thomson Healthcare Inc. All rights reserved. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.