How the interaction occurs:
When these two medicines are taken together, the toxic effects of your antibiotic may increase.
What might happen:
You may experience ringing, roaring, a feeling of fullness, or a loss of hearing in the ears; dizziness; or unsteadiness.
What you should do about this interaction:
Tell you doctor if you notice any change in your hearing or balance. Make sure that your doctor knows all of the medicines that you are taking.Contact your healthcare professionals (e.g. doctor or pharmacist) as soon as possible about taking these two medicines together.Your healthcare professionals may already be aware of this interaction and may be monitoring you for it. Do not start, stop, or change the dosage of any medicine before checking with them first.
1.Tobi (tobramycin solution for inhalation) US prescribing information. Novartis October, 2008.
2.Lasix (furosemide) US prescribing information. Sanofi-Aventis U.S. LLC March, 2012.