Norco is a prescription-based medication that is used to treat moderate pain. It works by blocking nerve impulses in the brain. If you have struggled with chronic pain from surgery, back pain, and other injuries. If you want to take Order Norco Online, then you must have a valid prescription and a doctor's consultation. Otherwise, this medication has severe side effects. Norco side effects may include constipation, urinary retention, breathing problems, and respiratory depression.