Norco (hydrocodone and acetaminophen) is a combination analgesic (pain reliever) that contains two different medications: hydrocodone bitartrate and acetaminophen (APAP).So if suffer from any type of pain then you can buy Norco online to get rid of that pain, as it works instantly many people choose Norco over other medicines. While the brand name "Norco" is no longer available, its generic version is available as a tablet. Hydrocodone bitartrate is an opioid analgesic that works by attaching to opioid receptors (binding sites).1 APAP, on the other hand, is a non-opioid pain reliever. It's thought to work by activating (waking up) a system in the body that blocks pain signals.The hydrocodone and APAP combination pain-reliever is generally available in prescription tablet or liquid dosage forms.