Every attempt has been made to insure the accuracy of this material, however, medical science is constantly changing. If the information on this page differs from what you have been told by a nurse, pharmacist or physician, consult the person who told you differently or the manufacturer. It is a prescription drug and can be addictive due to the narcotic component.
Dosages vary according to brand names.
Hydrocodone is similar to codeine in its action, working on the central nervous system and smooth muscle. It is believed to relate to opiate receptors in the central nervous system. Acetaminophen works in the periphery as an analgesic but also has antipyretic effects. It is absorbed rapidly in the GI tract and is distributed to most tissue areas in the body. Acetaminophen inhibits the production of prostaglandin which then may cause irritation to the stomach.