Were you looking for information about Mirena? Mirana is a common misspelling of Mirena.
Mirena® is an intrauterine contraceptive that prevents pregnancy by slowly releasing a certain hormone. This device also works by stopping ovulation (in some women) and altering the lining of the uterus and cervical mucus. Mirena is placed into the uterus within seven days after your period starts and is effective at preventing pregnancy for up to five years. Potential side effects include nausea, headaches, and a decreased sex drive.
(Click Mirena to read the complete eMedTV article, which offers more detailed information on how Mirena works and what you should know before taking it.)