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.

Input: Consider Input: PURPOSE: To report patients who presented to the oculoplastics department for repair of cicatrical entropion after topical use of dipivefrin.

Output: dipivefrin


Input: Consider Input: Drug-induced eosinophilia is a non-dose-dependent side effect of clozapine.

Output: clozapine


Input: Consider Input: Acyclovir neurotoxicity: clinical experience and review of the literature.


Output: Acyclovir