TriCor has been linked to a serious muscle complication. The condition is rare, but should be reported to your personal doctor if the muscle pain, tenderness, or weakness are experienced. Also, the following severe side effects should be reported as well: nausea, vomiting, fever, tiredness, abdominal pain. Minor side effects that should be monitored if present are pain in the joints, excessive gas, bloating, indigestion, or skin rashes.