Antituberculous drugs: 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 · Antituberculous drugs

Sample item

Which antituberculous drug can cause optic neuritis?

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

The answer and the reasoning

B. Ethambutol

Ethambutol can cause dose-related optic neuropathy with reduced visual acuity and red-green colour discrimination, requiring vision monitoring.

Option by option

  • A. Isoniazid

    Isoniazid commonly causes neuropathy.

  • B. Ethambutol (correct)

    Correct: ethambutol has optic-neuritis risk.

  • C. Pyrazinamide

    Pyrazinamide can raise urate.

  • D. Rifampicin

    Rifampicin causes body-fluid discoloration.

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, Ethambutol. Ethambutol can cause dose-related optic neuropathy with reduced visual acuity and red-green colour discrimination, requiring vision monitoring.

Why is "Isoniazid" not the answer?

Isoniazid commonly causes neuropathy.

Why is "Pyrazinamide" not the answer?

Pyrazinamide can raise urate.

Why is "Rifampicin" not the answer?

Rifampicin causes body-fluid discoloration.

What concept does this question test?

It tests Antituberculous drugs in Pharmacology. The correct option holds because: Correct: ethambutol has optic-neuritis risk.

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 Antituberculous drugs?

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.