system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Mirena is a
assistant
The correct answer is  LNG-IUS or Mirena
It is a levanorgestrel releasing device
It contains about 52 mg of levanorgestrel released at a rate approximately 20 microgram per day