How many milligrams of hydrocortisone should be used in compounding the following prescription? Rx Hydrocortisone Hydrophilic ointment ad Sig. Apply 1/8% 10 g
How many milligrams of hydrocortisone should be used in compounding the following prescription? Rx Hydrocortisone Hydrophilic ointment ad Sig. Apply 1/8% 10 g
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![**Prescription Compounding Exercise: Hydrocortisone**
**Text:**
How many milligrams of hydrocortisone should be used in compounding the following prescription?
**Prescription Details:**
- **Rx**
- Hydrocortisone: 1/8%
- Hydrophilic ointment ad: 10 g
- Sig. Apply
**Explanation:**
This is a pharmaceutical compounding exercise that requires the preparation of a hydrocortisone ointment. The prescription specifies that hydrocortisone should be formulated at a concentration of 1/8%. The base for the ointment is "Hydrophilic ointment ad," with a total weight of 10 grams.
*Calculating the Required Hydrocortisone:*
1. Convert the percentage concentration (1/8%) to a decimal:
\[ 1/8\% = 0.125\% = 0.00125 \]
2. Calculate the amount of hydrocortisone needed in milligrams for a 10-gram ointment:
\[ 0.00125 \times 10,000 \, \text{mg} = 12.5 \, \text{mg} \]
Therefore, 12.5 milligrams of hydrocortisone are required to compound this prescription.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F20ebb626-9e51-4019-bd58-e48f218a7434%2F0b21b49e-0d53-4b65-8dcd-5669b4970f6a%2F8vcg99d_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Prescription Compounding Exercise: Hydrocortisone**
**Text:**
How many milligrams of hydrocortisone should be used in compounding the following prescription?
**Prescription Details:**
- **Rx**
- Hydrocortisone: 1/8%
- Hydrophilic ointment ad: 10 g
- Sig. Apply
**Explanation:**
This is a pharmaceutical compounding exercise that requires the preparation of a hydrocortisone ointment. The prescription specifies that hydrocortisone should be formulated at a concentration of 1/8%. The base for the ointment is "Hydrophilic ointment ad," with a total weight of 10 grams.
*Calculating the Required Hydrocortisone:*
1. Convert the percentage concentration (1/8%) to a decimal:
\[ 1/8\% = 0.125\% = 0.00125 \]
2. Calculate the amount of hydrocortisone needed in milligrams for a 10-gram ointment:
\[ 0.00125 \times 10,000 \, \text{mg} = 12.5 \, \text{mg} \]
Therefore, 12.5 milligrams of hydrocortisone are required to compound this prescription.
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