Upset stomach, constipation, headache, dizziness or trouble sleeping are among the generic Fenofibrate medication side effects that may occur. If these effects, as well as muscle pain, tenderness, weakness or fever persist, inform your local doctor. Very unlikely adverse effects include decreased sexual drive, yellowing eyes or skin, stomach pain. In the improbable event you have a serious allergic reaction to this drug, seek immediate medical attention. Symptoms of a severe allergic reaction consist of rash, itching, swelling, severe dizziness, trouble breathing. If you notice other effects not listed above, contact your local doctor.