Rpmljm,
I think CalGal has explained you should take probiotics concurrent with
antibiotics, go ahead and take some whilst doing the
antibiotics. I do not know about the diff
kinds of probiotics, if you heard Florastor works best with the antibiotic you're on, sure, take it, and you can go ahead and take the Culturelle, too. Also, ordinary Acidophilus milk or Activia yogurt, while not as strong as some you get in the store, they do have probiotics in them and are better than nothing.