Neomycin Sulfate Oral Solution

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Neomycin Sulfate Oral Solution treats intestinal infections, primarily bacterial enteritis caused by E Coli., in a wide array of animals including cats, dogs, and horses. This medication can be given in the drinking water of the afflicted animal, making treatment easy. 

* This product brand will vary. If you have a specific brand you're looking for please email us at before purchasing.


  • Treats bacterial infections in the intestine.
  • Also given as a preventative treatment before surgery in the gastrointestinal region.
  • Easily administered in drinking water.
  • May also be used to treat hepatic encephalopathy or to lower ammonia levels.
  • Requires a prescription from your veterinarian.


  • Mix the prescribed dosage in with your animal’s drinking water, or as directed by your veterinarian.
  • Always finish the full prescribed course of treatment. Ending treatment early (even if the symptoms have disappeared) can lead to bacterial re-infection or antibiotic resistance.
  • Fresh medicated water should be prepared daily.


Prescription Drug Policy:

Prescriptions CAN NOT be shipped to North Carolina, Hawaii or Alaska at this time.

Prescription drugs can only be shipped upon receipt of an original prescription from a licensed veterinarian. FarmVet can accept an original prescription in one of the following ways:
  • The original prescription may be mailed to:
    1254 Old Hillsboro Rd, Franklin,TN 37069 
  • A licensed veterinarian may fax the Rx to 615-370-8502.
    The fax must originate from the veterinarian's office.
  • A licensed veterinarian can call & leave a voicemail with your prescription information with our pharmacy at 615-277-5602.

Prescriptions are non-refundable. Prescriptions are refillable if indicated by your vet, for up to one year from the original date. At the end of one year, prescriptions must be updated. Written prescriptions must include the veterinarian's license number, telephone number, and address. Federal law restricts the use of Rx drugs to use by, or on the order of a licensed veterinarian.


  • Tell your veterinarian of any other conditions afflicting your animal, as neomycin sulfate could potentially worsen them.
  • Potential side effects include intestinal upset, kidney or ear damage, drop in blood pressure, and localized swelling.
  • Tell your veterinarian of all other medication your animal is taking to guard against potential drug interactions.
  • Use caution when administering neomycin sulfate to animals with sepsis or kidney disease, a fever, or dehydration.

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