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PTCB PTCE Exam - Topic 1 Question 113 Discussion

Actual exam question for PTCB's PTCE exam
Question #: 113
Topic #: 1
[All PTCE Questions]

A local provider has written the following compounded prescription for a patient:

Zinc oxide ointment 20% 60 g

Nystatin ointment 100,000 units/g 60 g

Hydrocortisone ointment 1% 60 g

Cholestyramine powder 10 g

Mineral oil USP 10 mL

Total Weight 200 g

Which of the agents listed is an antifungal agent?

Show Suggested Answer Hide Answer
Suggested Answer: D

In the providedcompounded prescription, the antifungal agent isnystatin.

Nystatin is a polyene antifungalthat works by binding toergosterolin fungal cell membranes, causing leakage of cellular contents and fungal cell death.

It iscommonly used for fungal infections, particularlycutaneous or mucosal Candida infections(e.g., diaper rash, oral thrush).

A . Cholestyramine. Incorrect. Cholestyramine is abile acid sequestrantused to lowercholesteroland treatdiarrhea(often in combination with other ingredients for skin irritation or wounds).

B . Hydrocortisone. Incorrect. Hydrocortisone is acorticosteroidused to reduceinflammation and itching, but it does not kill fungi.

C . Zinc oxide. Incorrect. Zinc oxide is askin protectantused fordiaper rash and minor burns, but it is not an antifungal.

Lexicomp Drug Database -- Nystatin Mechanism of Action.

FDA Drug Label for Nystatin -- Antifungal Properties.

PTCB PTCE Exam Content Outline -- Compounded Preparations and Active Ingredients.

Mosby's Pharmacy Technician: Principles and Practice -- Dermatologic Compounding.

Why Is Nystatin an Antifungal?Why the Other Answer Choices Are Incorrect:Pharmacy Technician Reference:Conclusion:Pharmacy technicians must befamiliar with drug classificationsto correctly identify active ingredients incompounded prescriptions.Nystatin is the only antifungal agentin the provided formulation.


by Deane at Jul 09, 2025, 02:50 AM

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Francine
5 months ago
Totally agree, Nystatin is the antifungal agent!
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Margurite
5 months ago
Really? I didn't know Nystatin was in ointment form.
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Sheron
5 months ago
Just to clarify, Nystatin is used for fungal infections.
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Dannie
6 months ago
I thought Zinc oxide had antifungal properties too?
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Evangelina
6 months ago
Nystatin is definitely the antifungal here!
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Justine
6 months ago
Zinc oxide is more for skin protection, right? So it must be Nystatin that we're looking for here.
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Myong
6 months ago
I’m a bit confused; I thought hydrocortisone was an antifungal too, but now I’m not so certain.
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Gladys
7 months ago
I remember practicing a question about antifungals, and Nystatin was definitely mentioned as a common one.
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Aron
7 months ago
I think Nystatin is the antifungal agent, but I'm not completely sure if there are others in the list.
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Shenika
7 months ago
Based on the information provided, Nystatin is the antifungal agent in this prescription. It's a common choice for topical antifungal treatment.
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Adelina
7 months ago
I'm a bit confused by all the different ingredients in this compounded prescription. I'll need to double-check my knowledge of antifungal agents to answer this correctly.
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Ling
7 months ago
Nystatin is the obvious choice here. It's a well-known antifungal medication, and the dosage form matches the prescription.
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Gianna
8 months ago
Hmm, this is a tricky one. I'll need to carefully review the list of ingredients to identify the antifungal agent.
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Luther
8 months ago
I'm pretty sure the antifungal agent in this prescription is Nystatin, since it's listed as 100,000 units/g.
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Mi
10 months ago
Nystatin, no doubt. I can already smell the fungus being vanquished!
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Elinore
10 months ago
This is easy, it's got to be Nystatin. Unless they're trying to trick us, but I doubt it.
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Verona
10 months ago
Actually, Nystatin is the antifungal agent because it is commonly used to treat fungal infections.
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Nichelle
10 months ago
Hmm, let me think... Nystatin! It's the one that's specifically for treating fungal infections.
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Kristeen
10 months ago
I'm not sure, but I think Cholestyramine is the antifungal agent.
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Lisha
10 months ago
I'm pretty sure it's Nystatin. That's the classic antifungal medication, right?
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Caitlin
10 months ago
I agree with Noah, Nystatin is definitely the antifungal agent.
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Caprice
11 months ago
Nystatin, definitely! It's the only antifungal agent in the list.
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Trinidad
10 months ago
Nystatin is important for treating yeast infections.
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Francesco
10 months ago
Yes, Nystatin is used to treat fungal infections.
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Anika
10 months ago
I agree, Nystatin is the antifungal agent in the list.
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Noah
11 months ago
I think the antifungal agent is Nystatin.
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