Two doses of progesterone-releasing IUDs are now available and are popular new options for birth control. Levonorgestrel (synthetic progesterone) IUDs are used for contraception and to control heavy menstrual bleeding. Women like these IUDs because you have little to no menstrual cycles and they are in place for years.
The benefits of Mirena:
• Has been around longer than Skyla.
• Mirena is approved for up to five years of use, but appears to be effective for up to seven years.
• It works. The probability of pregnancy is 0.1 percent
The benefits of Skyla:
• It is smaller in size than the Mirena and has a smaller diameter so there is less pain during insertion.
• It also works. The probability of pregnancy is 0.41
What do they have in common?
• With both, the progestin effect is primarily local meaning not much progesterone goes in to the system, unlike taking a pill.
• Spotting and irregular bleeding in the first months after insertion occur with both, and usually resolve.
Both are great, and it’s good to see new birth control options.