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: Reversible sclerotic changes of lumbar spine and femur due to long-term oral isotretinoin therapy.

Output: isotretinoin


Input: Consider Input: All developed mucocutaneous side effects within 20 weeks of beginning im gold therapy, at a time when RA had improved markedly compared to pretreatment status.

Output: gold


Input: Consider Input: Heparin-dependent antibodies and thrombosis without heparin-induced thrombocytopenia.


Output: heparin