-aprepitant
-armodafinil
-barbiturates such as phenobarbital or primidone
-bexarotene
-bosentan
-carbamazepine
-certain medicines for HIV or AIDS or hepatitis
-felbamate
-griseofulvin
-modafinil
-oxcarbazepine
-phenytoin
-rifabutin
-rifampin
-rifapentine
-St. John''s wort
-topiramate

They need to know if you have or ever had any of these conditions:

-an unusual or allergic reaction to levonorgestrel, other medicines, foods, dyes, or preservatives
-pregnant or trying to get pregnant
-breast-feeding

Your period may begin a few days earlier or later than expected. If your period is more than 7 days late, pregnancy is possible. See your health care provider as soon as you can and get a pregnancy test.

Talk to your healthcare provider before taking this medicine if you know or suspect that you are pregnant. Contact your healthcare provider if you think you may be pregnant and you have taken this medicine.

If you have severe abdominal pain, you may have a pregnancy outside the womb, which is called an ectopic or tubal pregnancy. Call your health care provider or go to the nearest emergency room right away if you think this is happening.

Discuss birth control options with your health care provider. Emergency birth control is not to be used routinely to prevent pregnancy. Be sure to use your regular birth control method right away, or start one, if you do not have a regular birth control method already.

This medicine does not protect you against HIV infection (AIDS) or any other sexually transmitted diseases (STDs).

Keep out of the reach of children.

Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.