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 Life span of Cu-T- 380A and explain in detail?
Cu-T- 380A is approved for 10 years but it has been demonstrated to maintain its efficacy for at least 12 years of use Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 497