Norco is a brand name for a hydrocodone and acetaminophen combination that is used for relief of severe pain. It comes a capsule, a tablet or as an oral solution in doses of 5 mg, 7.5 mg, 10 mg, or 15 mg. Norco is a narcotic in the technical sense of the word and its use can lead to physical dependence. It should not be taken in doses higher than prescribed or without a prescription.