How many milligrams of hydrocortisone should be used in compounding the following prescription? Rx Hydrocortisone Hydrophilic ointment ad Sig. Apply 1/8% 10 g

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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.
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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