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NeomycinGel
(0.05%)
1.Formulation
Neomycinsulfate....................................0.05g Propyleneglycol[1]..................................5.0g Parabenes...............................................0.5g LutrolF127[1].......................................20.0g Water.....................................................74.5g 2.Manufacturing DissolvetheparabenesandLutrolF127inwaterheatedto about80C,
addthepropyleneglycolanddissolveneomycinsulfate.Coolto room
temperaturewhentheairbubblesescaped.
Alternative:
Dissolveparabenesinhotwater,coolto 5-10C,dissolveLutrolF127,
addpropyleneglycolanddissolveneomycinsulfate.Maintainthecool
temperatureuntiltheairbubblesescaped.
3.Propertiesofthegel
Aclearsemisoftgelwasobtained.
4.Physicalstability(6weeks)
Nochangeat6Cand23C.Yellowishat45C.
关键字:neomycin gel
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