While minor, some of these side effects may occur. They are as follows; hives; difficulty breathing; swelling of your face, lips, tongue, or throat. However if any of these persist or worsen, it’s best to speak with your doctor right away.
Common Seasonale side effects may include: mild nausea (especially when you first start taking this medicine), vomiting, bloating, stomach cramps; breast tenderness or swelling, nipple discharge; freckles or darkening of facial skin, increased hair growth, loss of scalp hair; changes in weight or appetite; problems with contact lenses; vaginal itching or discharge; or changes in your menstrual periods, decreased sex drive.
Stop using Seasonale and call your doctor at once if you begin to experience any of the following; sudden numbness or weakness (especially on one side of the body), sudden severe headache, slurred speech, problems with vision or balance; sudden cough, wheezing, rapid breathing, coughing up blood; pain, swelling, warmth, or redness in one or both legs; chest pain or heavy feeling, pain spreading to the jaw or shoulder, nausea, sweating, general ill feeling; a change in the pattern or severity of migraine headaches; nausea, upper stomach pain, itching, tired feeling, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes); swelling in your hands, ankles, or feet; a breast lump; or symptoms of depression (sleep problems, weakness, tired feeling, mood changes).
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.