Hey BL. I was recently prescribed Tizanidine HCL 4mg tabs. At 1st, it seemed/felt like a decent muscle relaxer & haven't been on any kind Of MR in years. But soon, I started having really bad side effects of severe lightheadedness, dizziness, dry mouth, dry eyes, severe drop in BP (91/53) & a general feeling of shittyness! I know that I have high sensitivity to any Rx that messes w/my serotonin. I was once hospitalized for a week due to serotonin syndrome. I reported this to my PM doctor & he felt it was unusual. Has anyone else had these bad side effects with Tizanidine or am I just an odd duck? I quit taking them & just stuck to the Hydrocodone 10mg he also prescribed & the shittyness had dissipated. Just curious...