Neomycin Sulfate and Bacitracin Ointment
» Neomycin Sulfate and Bacitracin Ointment contains the equivalent of not less than 90.0 percent and not more than 130.0 percent of the labeled amounts of neomycin and bacitracin.
Packaging and storage— Preserve in tight, light-resistant containers, preferably at controlled room temperature.
USP Reference standards 11
USP Bacitracin Zinc RS
USP Neomycin Sulfate RS
Thin-layer chromatographic identification test 201BNP: meets the requirements.
Minimum fill 755: meets the requirements.
Water, Method I 921: not more than 0.5%, 20 mL of a mixture of toluene and methanol (7:3) being used in place of methanol in the titration vessel.
Assay for neomycin— Proceed with Ointment as directed in the Assay under Neomycin Sulfate Ointment.
Assay for bacitracin— Proceed with Ointment as directed in the Assay under Bacitracin Ointment
Auxiliary Information— Please check for your question in the FAQs before contacting USP.
Topic/Question Contact Expert Committee
Monograph Ahalya Wise, M.S.
Senior Scientific Liaison
1-301-816-8161
(SM12010) Monographs - Small Molecules 1
Reference Standards RS Technical Services
1-301-816-8129
rstech@usp.org
USP35–NF30 Page 4011
Pharmacopeial Forum: Volume No. 28(4) Page 1153