I talked to a young man tonight who's brother died from Ritalin abuse. He said the prescription stimulant attacked his brother's heart, weakening it. That led to risky heart surgery, and his brother died on the operating table.
"He died during heart surgery, but it was Ritalin that killed him," he said, adding that Ritalin abuse is common on some college campuses.
This is the first I've heard of this. I did a Nexis search over the last year for stories of Ritalin abuse and death, and all I found was one reference to Ritalin's popularity at "pharm parties," where kids mix prescription drugs in a bowl and wash down mixtures of pills with alcohol.