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Suppression of Intestinal Bacteria: Neomycin sulfate tablets are indicated as adjunctive therapy as party 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 section).
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.
DOSAGE AND ADMINISTRATION
For use as an adjunct in the management of hepatic coma, the recommended dose is 4-12 grams per day given in the following regimen:
2. Give supportive therapy, including blood products, as indicated.
3. Give Neomycin Sulfate Tablets in doses of 4-12 grams of neomycin sulfate per day (eight to 24 tablets) in divided doses. Treatment should be continued over a period of five to six days, during which time protein should be returned incrementally to the diet.
4. If less potentially toxic drugs cannot be used for chronic hepatic insufficiency, neomycin in doses of up to four grams daily (eight tablets per day) may be necessary. The risk for the development of neomycin-induced toxicity progressively increases when treatment must be extended to preserve the life of a patient with hepatic encephalopathy who has failed to fully respond. Frequent periodic monitoring of these patients to ascertain the presence of drug toxicity is mandatory (see PRECAUTIONS). Also, neomycin serum concentrations should be monitored to avoid potentially toxic levels. The benefits to the patient should be weighed against the risks of nephrotoxicity, permanent ototoxicity and neuromuscular blockade following the accumulation of neomycin in the tissues.
Listed below is an example of a recommended bowel preparation regimen. A proposed surgery time of 8:00 am. has been used.
Pre-op Day 3: Minimum residue or clear liquid diet. Bisacodyl, 1 tablet orally at 6:00 p. m.
Pre-op Day 2: Minimum residue or clear liquid diet. Magnesium sulfate, 30 mL, 50% solution (15 g) orally at 10:00 a.m., 2:00 p.m., and 6:00 p.m. Enema at 7:00 p.m. and 8:00 p.m.
Pre-op Day 1: Clear liquid diet. Supplemental (IV) fluids as needed. Magnesium sulfate, 30 mL, 50% solution (15 g) orally at 10:00 a. m., and 2:00 p.m. Neomycin sulfate (1 g) and erythromycin base (1 g) orally at 1:00 p. m., 2:00 p.m. and 11:00 p.m. No enema.
Neomycin Sulfate Tablets, USP, 500 mg (equivalent to 350 mg of neomycin base per tablet) are available as round, off-white, unscored tablets, imprinted "BL" and "18", in bottles of 100 tablets.
Store at controlled room temperature 15°-30° C( 59°-86° F). Dispense in tight containers as defined in the USP/NF.
CAUTION: Federal law prohibits dispensing without prescription.
Last reviewed on RxList: 12/8/2004
This monograph has been modified to include the generic and brand name in many instances.
Additional Neomycin Sulfate Information
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