Neomycin Sulfate

Neomycin Sulfate

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Questions & Answers

Side Effects & Adverse Reactions

Additional manifestations of neurotoxicity may include numbness, skin tingling, muscle twitching and convulsions.

The risk of hearing loss continues after drug withdrawal.

Aminoglycosides can cause fetal harm when administered to a pregnant woman. Aminoglycoside antibiotics cross the placenta and there have been several reports of total irreversible bilateral congenital deafness in children whose mothers received streptomycin during pregnancy. Although serious side effects to fetus or newborn have not been reported in the treatment of pregnant women with other aminoglycosides, the potential for harm exists. Animal reproduction studies of neomycin have not been conducted. If neomycin is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to the fetus.

Legal Issues

There is currently no legal information available for this drug.

FDA Safety Alerts

There are currently no FDA safety alerts available for this drug.

Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.


To reduce the development of drug-resistant bacteria and maintain the effectiveness of Neomycin Sulfate Tablets USP and other antibacterial drugs, Neomycin Sulfate Tablets USP should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.

Suppression of intestinal bacteria

Neomycin sulfate tablets are indicated as adjunctive therapy as part of a regimen for the suppression of the normal bacterial flora of the bowel, eg, preoperative preparation of the bowel. It is given concomitantly with erythromycin enteric-coated base (see DOSAGE AND ADMINISTRATION).

Hepatic coma (portal-systemic encephalopathy

Neomycin sulfate has been shown to be effective adjunctive therapy in hepatic coma by reduction of the ammonia-forming bacteria in the intestinal tract. The subsequent reduction in blood ammonia has resulted in neurologic improvement.


There is currently no drug history available for this drug.

Other Information

Neomycin Sulfate Tablets, USP, for oral administration, contain neomycin which is an antibiotic obtained from the metabolic products of the actinomycete Streptomyces fradiae. Structurally, neomycin sulfate may be represented as follows:

Chemical Structure

Chemical Structure

C23H46N6O13·2 H2SO4 MW 614.67

Chemically, it is 0-2,6-diamino-2,6-dideoxy-α-D-glucopyranosyl-(1→3)-0-β-D-ribofuranosyl-(1→5)-0-[2,6-diamino-2,6-dideoxy-α-D-glucopyranosyl-(1→4)]-2-deoxy-D-streptamine. Neomycin B is identical except that the a-D-glucopyranosyl residue in the neobiosamine moiety is β-L-idopyranosyl.

Inactive Ingredients: Calcium Stearate, Povidone.

Neomycin Sulfate Manufacturers

  • Major Pharmaceuticals
    Neomycin Sulfate Tablet [Major Pharmaceuticals]
  • Hi Tech Pharmacal Co Inc
    Neomycin Sulfate Tablet [Hi Tech Pharmacal Co Inc]
  • Stat Rx Usa Llc
    Neomycin Sulfate, Polymyxin B Sulfate And Bacitracin Zinc (Neomycin, Polymyxin B And Bacitracin Zinc) Ointment [Stat Rx Usa Llc]
  • Stat Rx Llc Usa
    Neomycin Sulfate, Polymyxin B Sulfate And Dexamethasone (Neomycin, Polymyxin B And Dexamethasone) Suspension [Stat Rx Llc Usa]
  • Breckenridge Pharmaceutical, Inc.
    Neomycin Sulfate Tablet [Breckenridge Pharmaceutical, Inc.]
  • X-gen Pharmaceuticals, Inc.
    Neomycin Sulfate Tablet [X-gen Pharmaceuticals, Inc.]
  • Golden State Medical Supply, Inc.
    Neomycin Sulfate Tablet [Golden State Medical Supply, Inc.]
  • Teva Pharmaceuticals Usa Inc
    Neomycin Sulfate Tablet [Teva Pharmaceuticals Usa Inc]

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