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• Interactions

Other drugs, especially those that affect the kidneys, can interact with neomycin resulting in dangerous side effects and/or decreased effectiveness. Do not take any other prescription or over-the-counter medicines, including vitamins, minerals, and herbal products, without first talking to your doctor during treatment with neomycin.

If you experience any of the following serious side effects, stop taking neomycin and seek emergency medical attention:

• an allergic reaction (shortness of breath; closing of the throat; hives; swelling of the lips, face, or tongue; rash; or fainting);

• little or no urine;

• decreased hearing, ringing in the ears, or a feeling of fullness in the ears;

• dizziness, clumsiness, or unsteadiness;

• numbness, skin tingling, muscle twitching, or seizures; or

• severe watery diarrhea and abdominal cramps.

Other, less serious side effects may be more likely to occur. Continue to take neomycin and talk to your doctor if you experience

• nausea or vomiting; or

• diarrhea.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.