instruction:
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.
question:
In a postoperative patient with pre-existent myasthenia gravis, oral verapamil caused a marked exacerbation in myasthenic weakness.
answer:
verapamil


question:
CASE SUMMARY: A 45-year-old HIV-positive man (CD4+ count 450 cells/mm(3) and history of AIDS-defining illness) presented with JHR after an initial intravenous dose of penicillin G for presumed neurosyphilis.
answer:
penicillin G


question:
Leukopenia due to parvovirus B19 in a Crohn's disease patient using azathioprine.
answer:

azathioprine