Bruce Lee Jun-fan

There was no visible external injury; however, according to autopsy reports, his brain had swollen considerably, from 1,400 to 1,575 grams (a 13% increase). Lee was 32 years old. The only substance found during the autopsy was Equagesic. On 15 October 2005, Chow stated in an interview that Lee died from a hypersensitivity to the muscle relaxant (meprobamate) in Equagesic, which he described as a common ingredient in painkillers. When the doctors announced Lee's death officially, it was ruled a "death by misadventure".
Don Langford, Lee's personal physician in Hong Kong, had treated Lee during his first collapse. Controversy erupted when he stated, "Equagesic was not at all involved in Bruce's first collapse".
However, Donald Teare, was the top expert assigned to the Lee case. (He was a forensic scientist recommended by Scotland Yard who had overseen over 1,000 autopsies.) His conclusion was that the death was caused by an acute cerebral edema due to a reaction to compounds present in the prescription painkilling drug Equagesic, where Teare concluded "death by misadventure".
The preliminary opinion of Peter Wu, the neurosurgeon who saved Lee's life during his first seizure, was that the cause of death should have been attributed to either a reaction to cannabis or Equagesic. However, Wu later backed off from this position, stating that: