"i have an arnold chiari stage 3, severe scolosis with harrington rods, and bulging discs at l4-l5 and c4-5-6. i have found that vicodin is the only pain killer that works well enough for me to function. i have two young kids who need me to be able to function, and a husband. i do caution to use this wisely. i don&#039;t notice any ill side effects."