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Radiology General 8d12d430

A patient with cancer received extreme degree of radiation toxicity. Further history revealed that the dose adjustment of a particular drug was missed during the course of radiotherapy. Which of the following drugs required a dose adjustment in that patient during radiotherapy in order to prevent radiation toxicity –

A
Vincristine
B
Dactinomycin
C
Cyclophosphamide
D
6 – Mercaptopurine
High-Yield Explanation
Actinomycin - D (Dactinomycin) is well is well known radiosensitizer. So its dose should be reduced during radiotherapy to prevent radiation toxicity.

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