Vancomycin is used to treat serious bacterial infections. It is an antibiotic that works by stopping the growth of bacteria. This medication is usually given by injection into a vein. However, the form in vials may also be given by mouth to treat a certain intestinal condition (colitis) that may rarely happen after treatment with antibiotics. This condition causes diarrhea and stomach/abdominal discomfort or pain. When vancomycin is taken by mouth, it stays in the intestines to stop the growth of bacteria that cause these symptoms. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections.
Pain, redness, and tenderness at the injection site may occur. If this medication is injected too fast, a condition known as red man syndrome may occur. Tell your doctor promptly if you have symptoms such as flushing of the upper body, dizziness, or muscle pain/spasms of the chest and back. If any of these effects last or get worse, tell your doctor or pharmacist promptly. 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 right away if you have any serious side effects, including: hearing problems (such as ringing in the ears, hearing loss), signs of kidney problems (such as change in the amount of urine), easy bleeding/bruising, vision changes (such as blurred vision, decreased vision). Use of this medication for prolonged or repeated periods may result in oral thrush or a new yeast 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 rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: 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 or at www.fda.gov/medwatch.
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