Norco is a prescription medication that combines two active ingredients: hydrocodone and acetaminophen. It is primarily used to relieve moderate to severe pain. Hydrocodone is an opioid pain reliever, while acetaminophen is a non-opioid pain reliever that also helps reduce fever. Patients are advised to take Norco exactly as prescribed by their healthcare provider to minimize the risk of side effects and dependency. Common side effects may include dizziness, drowsiness, and constipation. It is important to avoid alcohol and other central nervous system depressants while taking Norco to prevent serious complications.