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.

Example Input: We report the occurrence of spontaneous intracranial bleeding in an human immunodeficiency virus (HIV)-infected adolescent with hemophilia A who was receiving amprenavir (APV).
Example Output: amprenavir

Example Input: Treatment of APL in pregnancy is controversial as the use of ATRA has been questioned due to the teratogenic effect of retinoids.
Example Output: ATRA

Example Input: Acute esmolol toxicity may be self-limiting because of its extremely short half-life.
Example Output:
esmolol