n o liomitaion but Its possible to make it in drug store to cut expencess

[clown mode]
Speaking as a Pipe of Stove that occasionally Carisolv'es, but will use
Krzysztof's formula when my present stock runs out, and report back as
to how it goes, and thus use the saved money for bagles and cream cheese
with lots of ketchup on it (E.D. Smith's, of course...), and an
occasional sortie with the kids to McDonald's, and perhaps buy my
parents' house for them, and invest the rest into GSK and retire a
millinaire,...

but I digress....
[/clown]

The only drawback that I can see is that is based on amino acids and
bleach (NaOCl). If near the pulp, the aa component might conceivably
provoke allergic reactions in susceptible individuals. I have never seen
this; in fact I don't think I've ever seen any reaction to Carisolv at
all, but the sample size of one dentist is not statistically valid.

As long as the stuff is well rinsed (this is sometimes a problem, as
where it is useful is often right up against a gum tissue margin that
you don't want to disturb and therby provoke bleeding..) the allergy
component should not really be a problem.

Do remember, however, that if one is resorting to such potions, the
health of the tooth is already in doubt, as you are doing this to
hopefully prevent a pulp exposure (W_B would say that if you're doing
these acrobatics, it's time for ENDO) or to contol bleeding at an
unhealthy gum margin, in which case you should be looking at crown,
CEREC or other indirect options anyways. Most in my practice cannot
afford those options.

[clown]
So there, you have one Pipe's opinion. You should get at least the
opinion of a full-fledged dishwasher.... :-)
[/clown]

Hope this helps. Perhaps the best is to phone your dentist and ask
his/her/it's experience.
SP