I take Viibryd 20mg a day and have occasionally taken Flexeril for muscle issues due to Lyme’s Disease. However, it says Flexeril cancause serotonin syndrome, so what muscle relaxer can I take as needed? I have a doctor appt coming up,and was just curious. Would it be safe to take ONE 5mg Flexeril or is there still a chance of serotonin syndrome? Thank you!