Antiemetics: practice question

A Pharmacology question in the style of the NEET PG paper. Answer it first, then read why the right option is right and why each of the others is wrong.

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Pharmacology · Antiemetics

Sample item

What receptor does ondansetron block?

Original practice item, not a recalled exam question. Nothing here is recorded.

The answer and the reasoning

B. 5-HT3

This item reviews Antiemetics; 5-HT3 is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Option by option

  • A. H1 only

    H1 only is plausible but not the best answer.

  • B. 5-HT3 (correct)

    Correct. 5-HT3 fits the defining feature.

  • C. Alpha-1

    Alpha-1 is unsupported by the key finding.

  • D. D2 only

    D2 only does not fit the stated mechanism or pattern.

Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.

More Pharmacology questions

Questions about this Pharmacology question

What is the answer to this Pharmacology question?

The best answer is B, 5-HT3. This item reviews Antiemetics; 5-HT3 is the best answer because it directly matches the pharmacologic or microbiologic principle described.

Why is "H1 only" not the answer?

H1 only is plausible but not the best answer.

Why is "Alpha-1" not the answer?

Alpha-1 is unsupported by the key finding.

Why is "D2 only" not the answer?

D2 only does not fit the stated mechanism or pattern.

What concept does this question test?

It tests Antiemetics in Pharmacology. The correct option holds because: Correct. 5-HT3 fits the defining feature.

How hard is this question?

We tag it as an application question: it asks you to use a fact on a patient or a finding. The tag is our own editorial judgement, not an official difficulty rating, so read the reason for every option, not only the answer.

How should I study Antiemetics?

Learn drugs as classes, then the exception in each class that an examiner would pick. Then use the flashcards and the other Pharmacology questions on this site to test what stuck.

Is this a real NEET PG question?

No. It is an original practice item (editorial status: sample, version 1). NextPrep does not publish recalled or leaked questions, and independent faculty review of this item has not been completed yet, so confirm important facts in a standard textbook.