In this task, you will be given sentences in which your task is to recognize the name of the drug or medicine. Drugs are substances that change a person's mental or physical state. They can affect how your brain works, how you feel and behave, your understanding, and your senses. Although there might be several correct answers, you need to write one of them.
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Question: Regression of thyrotoxic ophthalmopathy following lithium withdrawal.

Answer: lithium


Question: Both patients developed hypoadrenalism while on o,p'-DDD and apparently adequate dexamethasone replacement therapy.

Answer: o,p'-DDD


Question: CONCLUSIONS: The pathogenesis of methotrexate-induced papular eruption in collagen vascular diseases may suggest cutaneous small-vessel vasculitis.

Answer:
methotrexate