Levonorgestrel patches are used to help prevent pregnancy after having unprotected sex. The patches flood the patient’s body with female hormones in order to make it more difficult for any fertilized eggs to attach themselves to the uterus.
Levonorgestrel patches are only meant to be used on an emergency basis. Patients should not depend on them as their main source of birth control or use them regularly. Patients should also continue to take their regular birth control pills while on this medication.
This medication does not protect against sexually transmitted diseases such as HIV. Patients should use another form of protection, such as a condom, to prevent these types of diseases.