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 Arrange the following opioids according to their potency (most potent first) a. Fentanyl b. Sufentanil c. Morphine d. Pethidine and explain in detail?
a. Fentanyl group of opioids are most potent opioids. Among these most potent is Sufentanil (approx 1000 times more potent than morphine) . The sequence of potency from high to low in this group is Sufentanil > Fentanyl > Alfentanil. b. Pethidine is 10 times less potent than morphine