Does anyone know if norflex (orphenadrine) tablets come in an instant release, regular release form? and if so what mg tablets they are? My doctor gave me a prescription for norflex 100mg tablets and i filled it and they are extended release, i've never taken a muscle relaxer in an extended release form and think i'd prefer it to not be extended release because if they were regular like most muscle relaxers are then they also help me sleep. I have read good things about norflex but i wasn't expecting an extended release pill, (must have missed that bit of info) I was hoping someone might know because i wanted to know if this form even exists before i ask the doctor about it.