In all fairness, there's a very good chance the drugs were consumed in some magic combination that caused his body to be somewhat preserved. Plus the alcohol might have picked his entire body and not just a few organs.
During World War II, the British expected to have to once again deal with poison gas on the battlefield, so they undertook a top secret project intended to breed a new strain of super-soldier that was impervious to toxins. The top British scientists of the time were involved, and the effort was on par with America's Manhattan Project.
Most babies produced as a result of the project didn't survive long, but a few did. One of those babies was Keith Richards.
The project was eventually shut down due to the fact that the children who survived proved too erratic to make effective soldiers.
Okay, none of that is true... but it oughta be.
