Bayer Logo Bayer Logo Bayer Logo

Mechanism of Action

Kyleena® acts locally in the uterus1


Kyleena works locally to prevent pregnancy

 

  • The local mechanism by which continuously released LNG contributes to contraceptive effectiveness of Kyleena has not been conclusively demonstrated

 

Studies of Kyleena and similar LNG IUS prototypes have suggested several mechanisms that prevent pregnancy:

 

  • Thickening of cervical mucus preventing passage of sperm into the uterus
  • Inhibition of sperm capacitation or survival
  • Alteration of the endometrium

 

IUS=intrauterine system; LNG=levonorgestrel.

Kyleena® mechanism of action visual

 

Kyleena cannot be used for post-coital contraception or as an emergency contraceptive.1

Request a Rep

Stay up to date with clinical information and virtual trainings for Kyleena.

 

How small is Kyleena?

Learn more about the size of Kyleena.

 

See how Kyleena impacts bleeding

Know what patients may expect in the first 3 to 6 months of use.