Hi there. Side effects
of metanx are drowsiness, feeling of swelling of entire body, numbness or tingling, severe allergic reactions like hives. cymbalta or duloxetine has effects like nausea, upper stomach pain, loss of appetite, jaundice. You may feel like you will pass out, hallucinations, tachycardia or tremors. Breathing problems, loss of coordination, difficult urination etc few effects can be attributed to these drugs.