FWIW, I've heard some anecdotal evidence that decongestants can adversely
affect some women's supply, at least in their own perception. It doesn't seem
impossible that the drying effect of decongestants could extend to breastmilk
in sensitive individuals.

No -- I don't have any references, but I've heard this from a few different
women who experienced some supply problems after taking cold/allergy
preparations. At any rate, it might be something to keep in mind if a Mom's
supply seems to drop during ragweed season or when she has the sniffles.

Diane DiCarlo
LLLL
Brooklyn, NY