Hydrocodone is an effective antitussive (anti-cough) agent, and as an opiate it is also an effective analgesic for mild to moderate pain control. Five mg of hydrocodone is equivalent to 30 mg of codeine when administered orally. Early comparisons concluded that hydrocodone and morphine were equipotent for pain control in humans. However, it is now considered that a dose of 15 mg (1/4 gr) of hydrocodone is equivalent to 10 mg (1/6 gr) of morphine. Hydrocodone is considered to be morphine-like in all respects.

Sales and production of this drug have increased significantly in recent years (a four-fold increase between 1990 and 2000), as have diversion and illicit use. Trade names include Anexsia®, Hycodan®, Hycomine®, Lorcet®, Lortab®, Tussionex®, Tylox®, Vicodin®, and Vicoprofen®. These are available as tablets, capsules, and/or syrups. Generally; this drug is abused by oral rather than intravenous administration. Currently, about 20 tons of hydrocodone products are used annually in the United States.