It is used to prevent pregnancy.; It may be given to you for other reasons. Talk with the doctor.
Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect: Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.; Signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.; Weakness on 1 side of the body, trouble speaking or thinking, change in balance, drooping on one side of the face, or blurred eyesight.; Stomach pain.; Very bad dizziness or passing out.; Eyesight changes or loss, bulging eyes, or change in how contact lenses feel.; A lump in the breast, breast pain or soreness, or nipple discharge.; Vaginal itching or discharge.; Vaginal bleeding that is not normal.; Depression or other mood changes.; Swelling.; Call your doctor right away if you have signs of a blood clot like chest pain or pressure; coughing up blood; shortness of breath; swelling, warmth, numbness, change of color, or pain in a leg or arm; or trouble speaking or swallowing.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Symptoms of overdose may include severe nausea and vomiting, sudden/unusual vaginal bleeding.
Do not use in children who have not had their first menstrual period.