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Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using birth control pills and call your doctor at once if you have:

• signs of a stroke--sudden numbness or weakness (especially on one side of the body), sudden severe headache, slurred speech, problems with vision or balance;

• signs of a blood clot in the lung--chest pain, sudden cough, wheezing, rapid breathing, coughing up blood;

• signs of a blood clot in your leg--pain, swelling, warmth, or redness in one or both legs;

• heart attack symptoms--chest pain or pressure, pain spreading to your jaw or shoulder, nausea, sweating;

• liver problems--severe stomach pain, fever, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);

• a change in the pattern or severity of migraine headaches;

• swelling in your hands, ankles, or feet;

• a breast lump; or

• symptoms of depression--sleep problems, weakness, tired feeling, mood changes.

Common side effects may include:

• light vaginal bleeding or spotting;

• problems with contact lenses;

• nausea, vomiting, bloating;

• changes in weight or appetite;

• breast tenderness or swelling;

• freckles or darkening of facial skin, increased hair growth, loss of scalp hair;

• vaginal itching or discharge;

• headache; or

• changes in your menstrual periods.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.