配方类型:

DRUGS

配方说明:

Benzoyl Peroxide Acne Preparations (Solvent-Free)

配方组成:

Benzoyl Peroxide/5.0
Sodium Chloride/1.0
Aged (seven weeks @ 40 C)
pH/4.6
Brookfield Visc., RVT, 20 rpm, cP/16,550
B: Deionized Water/70.0
Brookfield Yield Value/1,820
C: Sodium Hydroxide (18% sol'n.)/1.5
"Carbopol" 940/2.0
pH/4.6
A: Deionized Water/20.0
Brookfield Visc., RVT, 20 rpm, cP/17,400
Brookfield Yield Value/2,250

配制方法:

Part A---Mull the ingredients together in the order listed until a smooth paste is obtained. Avoid excessive shear.
Part B---Combine with Part A and stir moderately until uniform. Allow entrapped air to escape.
Part C---Add sodium hydroxide. Stir slowly to minimize air entrapment.