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 Not used as emergency contraception and explain in detail?
Emergency contraception(EC) is based on the fact that protection is provided within 72 hours of unprotected intercourse. Mifepristone and LNG are proven easily administered oral therapy for EC whereas Cu T can be used effectively and cost effectively even till the fifth day after unprotected intercourse. However, LNG intrauterine device is more useful for disorders like menorrhagia, irregular bleeding, hyperplasia of the endometrium, etc .