Based on the opioid conversion table, 17 mg of hydrocodone is equivalent
to 10 mg of morphine. Therefore, 20 mg of Kadian is equivalent
to about 34 mg of hydrocodone. So, if you take 20 mg of Norco every 4 to 5 hours, the norco is stronger than the current dose of Kadian you are taking, as over a 12 hour period, you would have taken 40-60 mg of norco (or 23 - 35mg morphine equivalent).