My mother is 93 & has suffered from back spasms for decades. Her internist prescribed 4mg tizanidine 3x/day. It makes her dizzy, so my sister, who Mom stays with most of the time will let Mom have the medicine only at bedtime. That doesn t seem to do Mom s back any good, so my solution is to try cutting the pills in half. We have a pill cutter, & see if she builds up a tolerance to it. Mom stays with us part of the time. Is that reasonable, or should we ask the doctor for another drug? Thanks for your time. Rae McCartney