NuvaRing and Symfi Lo

• Generic Name: ethinyl estradiol / etonogestrel
• Dosage Forms: vaginal ring
• Other Brand Names: NuvaRing

The NuvaRing vaginal ring contains a combination of ethinyl estradiol and etonogestrel are female hormones that prevent ovulation (the release of an egg from an ovary).

The hormones in NuvaRing also causes changes in your cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.

The NuvaRing vaginal ring is used as contraception to prevent pregnancy.

• Generic Name: efavirenz / lamivudine / tenofovir
• Dosage Forms: tablet, film coated
• Other Brand Names: Symfi, Symfi Lo

Symfi Lo is a combination antiviral medicine that is used to treat human immunodeficiency virus (HIV). HIV is the virus that can cause acquired immunodeficiency syndrome (AIDS). Symfi Lo is not a cure for HIV or AIDS.

Symfi is for use in adults and children who weigh at least 88 pounds (40 kilograms).

Symfi Lo is for use in adults and children who weigh at least 77 pounds (35 kilograms).

Symfi Lo may also be used for purposes not listed in this medication guide.