The National Lipid Association (NLA) is lobbying the FDA to remove the requirement for liver function test from statin labeling. Reports of liver failure due to statin are only 1 out of 1 million prescriptions. While statins increase liver enzymes (AST, ALT), many experts believe the increase is not associated with liver dysfunction.
Overdose on tylenol, however, causes about 50% of acute liver failure in the U.S.
Reference: McKenney JM, Davidson MH, Jacobson TA, Guyton JR. Final conclusions and recommendations of the national lipid association statin safety assessment task force. Am J Cardiol 2006; 97(8A):89C-94C.
I never even knew there was a National Lipid Association!
Your citations speak of liver dysfunction - which is not necessarily disease - just a change. And....tylenol overdose, which is also rare & causes ACUTE liver failure.
The issue with acetaminophen is not so much acute as it is chronic toxicity, IMO and what is causing labeling change discussions.
Likewise, with the statins, altho it may not in the long term cause enough of a dysfunction to cause disease, it may cause enough harm - either thru increasing lfts or mucle pain to require further workup, particularly if the pt hasn't shared that they're taking the drug with the md.
Then....there is the whole issue of monitoring if the drug is really working & to what extent is it working? The otc cholesterol check systems are awful now, but they will get better with time. However, until they are more reliable, they aren't anything many of us would base a decision on - whether to increase or decrease the dose.
Then....there is the whole idea of "fractionating" cardiovascular care - or all medical care. A previous poster mentioned....otcs - altho mostly for acute illnesses, are often used for chronic conditions - prilosec, ibupofen...but they all come labeled with the caveat - if your condition does not improve in 2 weeks - see your physician.
Wouldn't you want your family & pts to see their physician for continuing cardiovascular care since it involves more than just the statin??? Are there enough of us - pharmacists with enough training, time, leadership skills, etc.....to intervene with those pts who really do need to see a physician when they come to ask us which (potential) statin is better? I know I could - given enough time with them.......but I think of all the days when I don't have that kind of time to devote to really finding out about that individual's concern & if they are really better served by seeing a physician rather than seeking out something they've seen on late night TV (which we all know happens). At this point in time, unless I fill an rx.....I don't have any way of getting back to the pt to remind them to come back in to be monitored.
These are not insurmountable issues....just ones which need to be hashed out & developed on our side of healthcare. I'm not sure where the medical community stands - particularly the cardiologists - does anyone have that citation to the FDA? But...for now..I'd have to stay on the cautious side.