Hi there
Just wanted to let you know that the use of tums is not risk free (mind you though what is?)
from
http://www.umm.edu/patiented/article...s_000019_9.htm
Calcium. Calcium carbonate (Tums, Titralac, and Alka-2) is a potent and rapid-acting antacid. It can cause constipation. There have been rare cases of hypercalcemia (elevated levels of calcium in the blood) in people taking calcium carbonate for long periods of time. This can lead to kidney failure and is very dangerous. None of the other antacids have this side effect.
there are also problems with using tums with medication
and from
http://www.drweil.com/drw/ecs/forums...docid=THR48220
Don't forget that tums is crammed full with artificial sweeteners- known to be harmful to dogs and may lead to constipation.
I am suprised that your vet did not warn you about the risk of tums affecting other medications.
On the face of it I would be tempted to say that angels eyes might actually be safer.
I will stick to my Angels Delight- that I know is safe and wholesome!!! (just wish that it was as cheap as tums

)
Mind you though, you are probably the best judge of how well your dog is. if it works for you then what the hey.
Calcium carbonate without the artificial sweetners might be safer though