Zinc Sulfide Topical Suspension
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This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition
Issued and maintained by the United States Pharmacopeial Convention (USP)
1 DEFINITION
Prepare Zinc Sulfide Topical Suspension as follows.
| Zinc Sulfate | 40 g |
| Sulfurated Potash | 40 g |
| Purified Water, a sufficient quantity to make | 1000 mL |
Dissolve the Zinc Sulfate and the Sulfurated Potash separately, each in 450 mL of Purified Water, and filter each solution. Add the sulfurated potash solution slowly to the zinc sulfate solution with constant stirring. Then add suficient Purified Water to bring to final volume, and mix.
[Note - Prepare the Topical Suspension fresh, and shake it thoroughly before dispensing.]
2 ADDITIONAL REQUIREMENTS
Packaging and Storage: Dispense in tight containers.
