Norco 5-325 mg is a prescription drug used to treat moderate to fairly severe pain. Acetaminophen (325 mg) and hydrocodone bitartrate (5 mg) are its two active components. Acetaminophen is a non-opioid pain reliever and fever reducer that improves overall pain control. In contrast, hydrocodone is an opioid analgesic that acts by altering how the brain and nervous system react to pain. Norco is often prescribed after surgery, injury, or for short-term management of significant pain when non-opioid medications are not effective. buy Norco 5-325 mg online appears frequently; however, healthcare authorities emphasize that Norco must only be dispensed through licensed pharmacies with a valid prescription. Hydrocodone is an opioid. Norco can cause side effects such as drowsiness, dizziness, nausea, constipation, and slowed breathing. It also carries a risk of dependence, misuse, and addiction, especially if not used exactly as prescribed.