What are the side effects of etodolac extended release tablets?

Side effects of etodolac extended release tablets include: diarrhea, constipation, heartburn, dizziness, upset stomach (nausea or gas), nasal blockage and weakness. Rarely, severe side effects occur in the form of black stools, dark urine, swelling in the arms or legs, seizures, abnormal bruising or bleeding, jaundice, rash, hives, itching, fainting, irregular heartbeat, persistent stomach pain and vomit that looks like coffee grinds. Contact your doctor immediately for these symptoms. Call 911 for chest pain or shortness of breath, incoherent speech, uncoordination lack of coordination on one side of your body and blurred or spotty vision. Contact your doctor immediately if you experience any of those symptoms. They may lead to stomach bleeding, heart attack or stroke. Also, etodolac extended release tablets may also cause problems during pregnancy, especially if taken during the last three months of pregnancy.