Cardiomyopathy Cocaine

Question: Overdose? Is this a large amount of cocaine (benzoylecgonine) and is it what killed him? My fiance passed away a year and half ago and I was able to take a look at the autopsy report for the first time today. Before I mention the details, I want to add that he had been going to and ear nose and throat doctor weeks prior to his death. On his autopsy report it said there was 0.45 MCG/ML of BENZOYLECGONINE found in his blood and cause of death was dilated cardiomyopathy. Is that amount a lot? I honestly believe he was not a user and think it somehow has to do with his doctor's visits prior, but...I need some closure....Please help.

Answer: It is difficult to answer without knowing more specifics, including the last time any cocaine was administered, and the amount used at that time. Blood levels of 0.45 mcg/ml is indicative of a normal dose administered anywhere from 2-3 days prior to the blood level being drawn. Topical cocaine used by EENT physicians is usually a ten percent solution. The amounts normally used generally would not create a substantial blood level, but again, it is difficult to say without a lot more information. I am sorry for your loss. You should be able to learn more from his physicians. Note that dilated cardiomyopathy can come from other causes besides cocaine use.