You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Remifentanil is: and explain in detail?
Remifentanil is a derivative of Fentanyl,an opioid analgesic. It is sho acting and is used for induction of anesthesia along with other IV anesthetics. They can be used epidurally in low doses to provide post operative analgesia. From padmaja 4th edition Page no 197