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: Two patients had ampicillin-associated seizures.

Answer: ampicillin


Question: A 16-year-old white male with acute biphenotypic leukemia developed evidence of the eosinophilia myalgia syndrome associated with total parenteral nutritional support with solutions containing tryptophan, which were given during his initial induction chemotherapy and also after autologous marrow transplantation.

Answer: tryptophan


Question: We report the case histories of two patients with histologically confirmed adenocarcinoma of the prostate, both of whom had been treated with steroidal anti-androgen therapy in the form of cyproterone acetate prior to radical or palliative pelvic irradiation, and who subsequently developed femoral head avascular necrosis.

Answer:
cyproterone acetate