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PTECH Pharmaceutics II (Industrial & Quality Control) QUESTION #5692
Question 1
The displacement value of Zinc Oxide in Cocoa Butter suppositories is $5$. If a prescription requires $400 \text{ mg}$ of Zinc Oxide per $2 \text{ g}$ suppository, how much Cocoa Butter is needed per unit?
  • $1.60 \text{ g}$
  • $1.92 \text{ g}$✔️
  • $2.00 \text{ g}$
  • $1.84 \text{ g}$
Correct Answer Explanation
Amount displaced = $0.4 / 5 = 0.08 \text{ g}$. Base needed = $2.0 - 0.08 = 1.92 \text{ g}$.