Hydrocodone was first synthesized in Germany in
1920. It is an semi-synthetic opioid analgesic (pain
killer) made from the opium derivatives codeine and
thebaine.
Although not as strong as morphine or
oxycodone
is is still considered to be dependence causing if
taken for long enough.
In addition to taking LSD to
try and cure his migraine in the episode
'Distraction', Dr. Gregory House (played by Hugh
Laurie in the Fox TV show 'House') is dependent on
Vicodin.
Many of House's drug issues mirror those of Sherlock
Holmes (House - Holmes / Homes) dependence on both
morphine and cocaine - both return to heavy drug use
when there are no cases to deal with.