The most common side effects include stomach upset, nausea, changes in menstrual periods (lighter or absent periods), headache, muscle aches, joint pain, muscle cramps, migraine, and fatigue. This medication should not be taken if you are pregnant or breastfeeding. This medication may increase the risk of blood clots. Stop this medication and seek medical attention if you develop swelling in one or both legs, difficulty breathing, eye symptoms or changes in vision. If you develop vision changes, you should see an ophthalmologist immediately for evaluation, including a dilated retinal examination. Do not take this medication if you suspect you have COVID-19. A very serious allergic reaction to this drug is unlikely, but seek immediate medical attention if it occurs. Symptoms of a serious allergic reaction may include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of side effects and others may occur. Contact your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.