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Neomycin

Pronounced

"nee-oh-MY-sin"

Common brand names:

Mycifradin

Uses

This medication is used to decrease the risk of infection after certain intestinal surgeries. Neomycin belongs to a class of drugs known as aminoglycoside antibiotics. It works by stopping the growth of bacteria in the intestines.

Neomycin may also be used along with a special diet to treat a certain serious brain problem (hepatic encephalopathy). This condition is caused by too much of a certain natural substance (ammonia). Normally, the liver gets rid of ammonia, but liver disease can cause too much ammonia to build up in the body. This medication helps treat encephalopathy by killing certain intestinal bacteria that make ammonia.

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.

How to Use This Medication

Take this medication by mouth exactly as prescribed by your doctor.

To decrease the risk of infection after intestinal surgery, take this medication as directed by your doctor, usually for 3 or 4 doses the day before surgery. Carefully follow your doctor's directions for any diet restrictions and using this medication or other products before surgery.

For treating hepatic encephalopathy, take this medication as directed by your doctor, usually four times a day for 5 to 6 days.

The dosage is based on your medical condition and response to treatment. To decrease your risk of hearing loss and other side effects, take this medication at the lowest effective dose for the shortest possible time. Do not increase your dose, take it more often, or take it for a longer time than prescribed. The manufacturer recommends that this medication should not be taken for longer than 2 weeks during each treatment period.

If you are taking this medication for hepatic encephalopathy, take it at evenly spaced times for the best effect. To help you remember, take it at the same times each day. Tell your doctor if your condition lasts or gets worse.

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Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

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Information expires December 2025.