metronidazole sustained-action - oral, Flagyl ER (cont.)
HOW TO USE: Take this medication by mouth once daily or as directed by your doctor. To help this drug be absorbed by your body, it is best to take this on an empty stomach at least one hour before or two hours after a meal.This medication must be swallowed whole. Do not crush or chew them before swallowing.Antibiotics work best when the amount of medicine in your body is kept at a constant level. Therefore, take this drug at evenly spaced intervals.Continue to take this medication until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping the medication too early may allow bacteria/protozoa to continue to grow, which may result in a relapse of the infection.Inform your doctor if your condition persists or worsens.
SIDE EFFECTS: Dizziness, headache, diarrhea, nausea, stomach pain, loss of appetite, constipation, changes in taste, furry tongue, and dry mouth may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.This drug may cause urine to darken in color. This is harmless.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor immediately if any of these unlikely but serious side effects occur: unsteadiness, seizures, mental/mood changes, numbness/tingling of hands/feet, painful urination.Tell your doctor immediately if any of these rare but very serious side effects occur: eye pain, sudden vision changes, sore throat, persistent fever, unusual bleeding/bruising, severe stomach pain, persistent nausea/vomiting.This medication may be used to treat a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. However, treatment with metronidazole for other types of infections may rarely cause this intestinal condition. Tell your doctor immediately if you develop: persistent diarrhea, abdominal or stomach pain/cramping, or blood/mucus in your stool. This condition may occur weeks to months after treatment with antibiotics has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have these symptoms because these products may make them worse.Use of this medication for prolonged or repeated periods may result in oral thrush or a new vaginal yeast infection (oral or vaginal fungal infection). Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Back to Medications Index
Get the latest health and medical information delivered direct to your inbox FREE!