Vicodin is the prescription painkiller to which Gregory House is addicted in House M.D.
House uses Vicodin to manage chronic pain associated with an infarction in the quadriceps muscle of his right leg. The injury leaves him with a limp and contributes to the character’s dependence on a cane. His pain, medication use, and refusal to accept ordinary limits are recurring parts of the series’ character and medical plots.
Vicodin is a brand name for a combination of hydrocodone and acetaminophen. The fictional character’s reliance on it is not presented merely as a background detail: withdrawal, concealment, tolerance, and professional consequences repeatedly affect House’s decisions and relationships.
The show often links House’s drug use with the idea that pain and addiction can coexist with exceptional professional ability. That is a dramatic premise, not a general medical rule. Viewers sometimes identify the cane as the cause of House’s disability, but the cane is a consequence of his leg injury; Vicodin is the medication associated with his addiction.