Oxycontin did not cause his hearing loss. You are conflating two issues.
FReegards!
Limbaugh's cochlear implant doctor, Dr. Jennifer Derebery, an otolaryngologist at the House Ear Clinic in Los Angeles, says it is possible that there is a connection between Limbaugh's sudden hearing loss and pill abuse, but she said there is no way to know for sure.
"We don't know why some people, but apparently not most, who take large doses may lose their hearing," Derebery said on ABCNEWS' Good Morning America. "The reason we don't know is that because we ultimately have to have biopsy specimens of the inner ear to tell that. but you can't biopsy the inner ear of a person who is alive because we are going to destroy the hearing," she said.
Did Drugs Cause Limbaugh's Hearing Loss?
So the truth is we do not know if the pills caused his hearing loss or not, but we do know that a percentage do suffer hearing loss with large intake amounts of prescription drugs. I am assuming that they have done biopsy research after patients have died to determine that it is know as a certainty that their hearing loss was indeed caused by prescription drug abuse. Didn't read the entire article to determine if my last statement is even true, just an assumption. But it seems to be an accepted hypothesis at any rate, as there were numerous articles about his hearing loss possibly being attributed to his prescription drug abuse. 8>)