by lars999 » Sun Nov 21, 2010 6:58 pm
Given what I have read thus far about statin adverse side effects, my first thought is that the following classifications of possible types of half-lives seems a reasonable place to start. But, I doubt that all adverse effects of statins can be modeled as half-lives.
1) Simple half-live for ingested statin drug to pass through the body. This is probably the 2-3 hours half-life Nancy found via Google. IF T1/2 is 3,0 hours, then 12 hours later 1/16 remains in body and at 24 hours 1/256 remains, that is after 8 half lives.
2) A quite different half-life would be that for the time, after we quit a statin, after the statin's effects have plateaued (months or years on statin), for our bodies to recover back to pre-statin productions of ALL biochemicals drastically reduced by the statin (cholesterol, CoQ10, dolichols, as well as their subsequent products). In other words, for our bodie's biochemistry to return to pre-statin conditions (IF that is possible). And, of course, how does one define a useful, single "half life" point for this rather complex process?
At least for some of my friends, cholesterol levels returned to pre-statin levels in two to four weeks. However, much longer was required for the nasty adverse side effects to become negligable or absent.
Which brings us to the third type of half-life.
3) A "half-life" that describes the time needed for the effects of adverse side effects to decrease by half. Again, as with 2), I wonder if a single, useful half life could be defined, given the diversity of adverse side effects of statins. Can all statin adverse effects be reversed? How do we distinguish statin adverse effects from natural effects of aging? How is progression of normal aging modeled?
However, it would appear that there are other adverse effects of statins that are so different from those noted in the classes noted above that they could not be modeled as "half-lives". These are those maladies that are induced or "unmasked" by the statin drug and then proceed on their own course. Here I would include, Alzheimers, congestive heart failure, liver or kidney failure, dementia, cancers, cognitive effects, etc., etc.
Lars