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 Mirena is : and explain in detail?
Ans. is c i.e. Progesterone IUCD Mirena is a progesterone IUCD. It contains 52mg levonorgesterel. eluting 20pg daily. Life span- 5 years Failure rate = 0.1-0.4/HMY Mode of action : * Inhibits feilisation Thickens cervical mucus Inhibits sperm function Suppresses endometrium and prevents implantation and inhibits ovulation only in 10-15% cases. Within first seven days of onset of menstruation Immediately after first or second trimester termination of pregnancy After 6 weeks postpaum with contraception for 7 days.