Polymyxin B sulfate 10000 Units, bacitracin zinc 500 Units; per g. Formerly known under the brand name Polysporin.

Polymyxin B sulfate 10000Units, bacitracin zinc 400Units, neomycin (as sulfate) 3.5mg; per g; oph oint. 1–2 drops or small amount of oint every 4 hours for 7–10 days. Max 2 drops every 2 hours.

Bacitracin is a polypeptide antibiotic that is chemically unrelated to neomycin. It inhibits bacterial cell wall synthesis. It is produced by Bacillus subtilis (Gehrig & Warshaw, 2008).

Cross-sensitivity is again common. Patients with a bacitracin sensitivity may experience sensitivities against neomycin, gentamicin, kanamycin, streptomycin, spectinomycin, tobramycin, paromomycin ...

The beta hemolytic organisms (Streptococcus pyogenes and Streptococcus agalactiae) are tested with Taxos A (bacitracin). A zone of inhibition of growth around the Taxos disc indicates that the ...