Hydrocodone
4,5-alpha-epoxy-3-methoxy-17-methyl- morphinan-6-one
CAS number 125-29-1	ATC code R05DA03
Chemical formula	C18H21NO3
Molecular weight	299.368
Bioavailability	?
Metabolism	?
Elimination half-life	4-8 Hours
Excretion	?
Pregnancy category	?
Legal status	Schedule II (DEA)
Routes of administration	tablets 15 mg

Hydrocodone (dihydrocodeinone) is an orally active analgesic and antitussive Schedule II narcotic which is marketed in multi-ingredient Schedule III products. The therapeutic dose of 5 mg to 10 mg is pharmacologically equivalent to 60 mg of oral morphine. Sales and production of this drug have increased significantly in recent years, as have diversion and illicit use. Trade names include Anexsia, Dicodid, Hycodan, Hycomine, Lorcet, Lortab, Norco, Tussionex, and Vicodin. These are available as tablets, capsules, and syrups.

In the UK it is listed as a Class A drug under the 1971 Misuse of Drugs Act.