My doctors agree that it would be fine for me to switch from lipitor
(10mg) to SIM. (20 mg).    For reasons that I"ll
explain later .......is it OK, medically,  to
(1) make the change to SIM
(2) get re-tested a few months(?)  later (chol. and liver) to make
sure it's working OK
(3) then go back to lipitor for a month or 2
(4) then when  my lipitor supply runs out for good,  go back to SIM
permanently

My main question is the interchangeability between the 2 drugs.   I
know that there's no problem
changing from one to the other,  but is changing back and forth a few
times, over a period
of a few months,  any problem?   (I know, of course, it would make the
near-future cholesterol tests
impossible to interpret as far as how the "drug" is working"....) but
that's not my concern here.

I"m just concerned whether it would have any negative effects or
possibly harmful effects.

And extending this, just to a hypothetical case,   what if someone
changed from one to the other
each week,  for maybe a few months (not that I would be doing
that).

I'm only doing this so save a little money and also keep up my supply
of statins when I travel,
without having to worry about getting refills  if i'm in a far away
place.   It's not worth going into
the details....
thanks.