Norco is a well-known fast-working opioid painkiller to treat severe muscle pain, which is generally prescribed when other painkillers don’t work properly. In general, it contains both opioid and non opioid painkillers such as Hydrocodone and Acetaminophen because of its sensitivity towards abuse, addiction, and misuse. The FDA regulates the purchase of Norco 10-325 mg Pills online, which requires a prescription from a licensed doctor for use. Never stop using Norco medicines all of a sudden without consulting a doctor, as it can cause serious withdrawal symptoms, including restlessness, mental changes, watering eyes, nausea, diarrhea, and muscle aches. If your doctor wants to stop the medication, the doctor will decrease the dose slowly and gradually until you stop taking it safely.