PTCB PTCE Exam - Topic 1 Question 119 Discussion

Actual exam question for PTCB's PTCE exam

Question #: 119
Topic #: 1

[All PTCE Questions]

Famotidine oral suspensionremains stable for a maximum of how many days following reconstitution?

C21

D30

Show Suggested Answer

Suggested Answer: C

Famotidine suspension is stable for 21 days when stored in the refrigerator (2C--8C or 36F--46F).

Reference:FDA Famotidine Stability Guidelines, USP Storage Guidelines.

by Celia at Nov 20, 2025, 04:45 PM

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Yesenia

2 months ago

21 days is a good guess. I hope it's not just 1 day!

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Ashlyn

2 months ago

I lean towards 7 days too. Seems reasonable.

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Freeman

2 months ago

No way, it's definitely 1 day.

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Nettie

2 months ago

I remember reading about stability. 30 days sounds right.

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Norah

2 months ago

I feel like it's longer. Maybe 21 days?

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Alica

2 months ago

Famotidine suspension lasts for 30 days, confirmed!

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Kenneth

3 months ago

Wait, are you sure about 30 days? That seems too long.

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Caitlin

3 months ago

Definitely 21 days, right?

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Mary

3 months ago

I thought it was only 7 days.

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Madelyn

4 months ago

It's 30 days after reconstitution!

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Jarod

4 months ago

I'll go with C) 21 days. Anything less and I'd have to reconstitute it every week. That's way too much work.

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Rosalia

4 months ago

Haha, the correct answer is obviously A) 1 day. Famotidine suspension is like a ticking time bomb!

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Lynna

4 months ago

Definitely B) 7 days. Who needs a suspension that lasts for 21 or 30 days? I'll just take the tablet version.

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Edwin

4 months ago

I thought it was only 1 day, but I might be confusing it with a different oral suspension.

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Dorathy

4 months ago

I’m leaning towards 30 days, but I could be mixing it up with another medication.

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Jovita

5 months ago

I remember practicing a question about reconstituted medications, and I feel like 21 days was mentioned for something similar.

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Nidia

5 months ago

I think famotidine suspension is stable for 7 days, but I'm not completely sure.

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Kindra

5 months ago

Alright, time to apply my knowledge. Famotidine is a pretty common drug, so I bet the stability data is well-established. I'll eliminate the options that don't seem plausible.

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Leonora

5 months ago

I think it's 7 days.

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Ira

5 months ago

Wait, is this asking about the reconstituted suspension or the original powder? I want to make sure I don't mix those up. Gotta read the question closely.

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Kassandra

5 months ago

I think the answer is C) 21 days. That's what I learned in my pharmacology class.

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Goldie

6 months ago

Ah, I've seen questions like this before. It's all about understanding the typical stability profiles for different liquid medication formulations. I'm pretty confident I can nail this one.

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Aileen

6 months ago

D) 30 days sounds about right. I remember reading that in the drug monograph.

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Carla

6 months ago

Okay, let me think this through. Famotidine is a common acid reducer, so the stability of the reconstituted suspension is an important consideration. I'll have to weigh the options carefully.

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Billy

6 months ago

Hmm, I think this is asking about the shelf life of the reconstituted suspension. I'll need to remember the key stability information for different drug formulations.

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