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.

Q: Hemorrhagic cystitis is a significant toxic effect of cyclophosphamide therapy.

A: cyclophosphamide
****
Q: Proton MRS examination demonstrated a persistent lactate elevation during metronidazole treatment.

A: metronidazole
****
Q: The first known report of quetiapine exacerbating OCS in a 43-year-old man with obsessive-compulsive disorder (OCD), trichotillomania, delusional disorder and bipolar II disorder is presented.

A:
quetiapine
****